Airend Inspection, Disassembly & Precision Measurement Engineering

AIREND INSPECTION, DISASSEMBLY & PRECISION MEASUREMENT ENGINEERING

Inspection depth must match available manufacturer tolerances and specialist tooling. It requires external evidence first—operating trends, vibration/noise, oil analysis where available, leakage, shaft condition and coupling/alignment; controlled disassembly, cleaning, marking, measurement and contamination control under documented work instruction; dimensional/condition evidence for bearings, seals, housings, rotor surfaces, shafts and relevant clearances against approved limits where available; and a disposition report stating reusable, replace, machine/rework if approved, or reject, with evidence and assumptions.

Its authoritative body remains separately preserved.

Provisional new-series slug: /compressed-air-engineering/airend-inspection-disassembly-precision-measurement/ | CTA: Request a Controlled Airend Inspection

Disassembly is not the start of diagnosis. it is an irreversible change to the evidence, so the external condition must be captured before the first fastener is removed

Its purpose is not merely to dismantle an airend; it is to preserve component identity, orientation, wear patterns, deposits, debris and dimensional evidence so every disposition can be traced to an observation, measurement and approved reference.

The page deliberately does not publish universal airend clearances, bearing fits, shaft runout, rotor geometry or machining limits. Where those limits or suitable specialist tooling are unavailable, the correct outcome may be 'measurement obtained—acceptance not established' rather than an invented pass/fail.

1 — Compressor Identity

Inspection Governance: govern compressor identity as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

2 — Airend Identity

Inspection Governance: govern airend identity as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

3 — Inspection Work Order

Inspection Governance: govern inspection work order as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

4 — Inspection Objective

Inspection Governance: govern inspection objective as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

5 — Failure Hypothesis

Inspection Governance: govern failure hypothesis as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

6 — Scope Boundary

Inspection Governance: govern scope boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

7 — Technical Reviewer

Inspection Governance: govern technical reviewer as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

8 — Qa Reviewer

Inspection Governance: govern QA reviewer as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

9 — Work Instruction

Inspection Governance: govern work instruction as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

10 — Approved Tolerance Source

Inspection Governance: govern approved tolerance source as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

11 — Tooling Plan

Inspection Governance: govern tooling plan as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

12 — Metrology Plan

Inspection Governance: govern metrology plan as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

13 — Cleanliness Plan

Inspection Governance: govern cleanliness plan as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

14 — Evidence Plan

Inspection Governance: govern evidence plan as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

15 — Revision Control

Inspection Governance: govern revision control as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

16 — Operating Trends

External Evidence Before Opening: govern operating trends as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

17 — Vibration

External Evidence Before Opening: govern vibration as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

18 — Noise

External Evidence Before Opening: govern noise as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

19 — Temperature

External Evidence Before Opening: govern temperature as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

20 — Oil Analysis

External Evidence Before Opening: govern oil analysis as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

21 — Leakage

External Evidence Before Opening: govern leakage as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

22 — Shaft Condition

External Evidence Before Opening: govern shaft condition as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

23 — Coupling Condition

External Evidence Before Opening: govern coupling condition as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

24 — Alignment Evidence

External Evidence Before Opening: govern alignment evidence as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

25 — Fault History

External Evidence Before Opening: govern fault history as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

26 — Hours

External Evidence Before Opening: govern hours as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

27 — Lubricant History

External Evidence Before Opening: govern lubricant history as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

28 — Photos/Video

External Evidence Before Opening: govern photos/video as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

29 — External Damage

External Evidence Before Opening: govern external damage as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

30 — Baseline Confidence

External Evidence Before Opening: govern baseline confidence as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

31 — Isolation

Pre-Disassembly Safety & Preservation: govern isolation as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

32 — Depressurisation

Pre-Disassembly Safety & Preservation: govern depressurisation as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

33 — Fluid Drainage

Pre-Disassembly Safety & Preservation: govern fluid drainage as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

34 — Stored Energy Boundary

Pre-Disassembly Safety & Preservation: govern stored energy boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

35 — Lifting/Support Boundary

Pre-Disassembly Safety & Preservation: govern lifting/support boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

36 — Workbench Readiness

Pre-Disassembly Safety & Preservation: govern workbench readiness as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

37 — Clean Zone

Pre-Disassembly Safety & Preservation: govern clean zone as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

38 — Parts Trays

Pre-Disassembly Safety & Preservation: govern parts trays as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

39 — Evidence Labels

Pre-Disassembly Safety & Preservation: govern evidence labels as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

40 — Sample Containers

Pre-Disassembly Safety & Preservation: govern sample containers as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

41 — Photo Plan

Pre-Disassembly Safety & Preservation: govern photo plan as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

42 — Orientation Marks

Pre-Disassembly Safety & Preservation: govern orientation marks as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

43 — Tamper/Evidence Control Boundary

Pre-Disassembly Safety & Preservation: govern tamper/evidence control boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

44 — Open-Port Protection

Pre-Disassembly Safety & Preservation: govern open-port protection as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

45 — Pre-Open Signoff

Pre-Disassembly Safety & Preservation: govern pre-open signoff as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

46 — Sequence

Controlled Disassembly: govern sequence as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

47 — Documented Work Instruction

Controlled Disassembly: govern documented work instruction as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

48 — Fastener Map

Controlled Disassembly: govern fastener map as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

49 — Cover/Housing Removal

Controlled Disassembly: govern cover/housing removal as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

50 — Seal Removal

Controlled Disassembly: govern seal removal as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

51 — Bearing Removal Boundary

Controlled Disassembly: govern bearing removal boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

52 — Rotor Removal Boundary

Controlled Disassembly: govern rotor removal boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

53 — Shaft Orientation

Controlled Disassembly: govern shaft orientation as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

54 — Shim/Spacer Control

Controlled Disassembly: govern shim/spacer control as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

55 — Timing Component Boundary

Controlled Disassembly: govern timing component boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

56 — Special Tool

Controlled Disassembly: govern special tool as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

57 — Press/Puller Boundary

Controlled Disassembly: govern press/puller boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

58 — Heat Application Boundary

Controlled Disassembly: govern heat application boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

59 — Damage Prevention

Controlled Disassembly: govern damage prevention as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

60 — Disassembly Record

Controlled Disassembly: govern disassembly record as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

61 — Component Id

Marking & Traceability: govern component ID as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

62 — Left/Right Boundary

Marking & Traceability: govern left/right boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

63 — Drive/Non-Drive End

Marking & Traceability: govern drive/non-drive end as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

64 — Male/Female Rotor Boundary

Marking & Traceability: govern male/female rotor boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

65 — Bearing Position

Marking & Traceability: govern bearing position as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

66 — Seal Position

Marking & Traceability: govern seal position as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

67 — Shim Identity

Marking & Traceability: govern shim identity as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

68 — Spacer Identity

Marking & Traceability: govern spacer identity as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

69 — Fastener Group

Marking & Traceability: govern fastener group as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

70 — Orientation Mark

Marking & Traceability: govern orientation mark as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

71 — Photo Id

Marking & Traceability: govern photo ID as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

72 — Sample Id

Marking & Traceability: govern sample ID as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

73 — Measurement Id

Marking & Traceability: govern measurement ID as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

74 — Disposition Id

Marking & Traceability: govern disposition ID as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

75 — Chain Of Traceability

Marking & Traceability: govern chain of traceability as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

76 — Pre-Clean Photos

Cleaning & Evidence Preservation: govern pre-clean photos as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

77 — Debris Collection

Cleaning & Evidence Preservation: govern debris collection as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

78 — Oil Residue Sample

Cleaning & Evidence Preservation: govern oil residue sample as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

79 — Deposit Sample Boundary

Cleaning & Evidence Preservation: govern deposit sample boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

80 — Cleaning Method

Cleaning & Evidence Preservation: govern cleaning method as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

81 — Solvent Compatibility Boundary

Cleaning & Evidence Preservation: govern solvent compatibility boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

82 — Abrasive Cleaning Boundary

Cleaning & Evidence Preservation: govern abrasive cleaning boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

83 — Surface Protection

Cleaning & Evidence Preservation: govern surface protection as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

84 — Corrosion Preservation Boundary

Cleaning & Evidence Preservation: govern corrosion preservation boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

85 — Foreign-Material Exclusion

Cleaning & Evidence Preservation: govern foreign-material exclusion as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

86 — Cleaning Sequence

Cleaning & Evidence Preservation: govern cleaning sequence as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

87 — Cleanliness Verification

Cleaning & Evidence Preservation: govern cleanliness verification as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

88 — Post-Clean Photo

Cleaning & Evidence Preservation: govern post-clean photo as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

89 — Evidence Retained

Cleaning & Evidence Preservation: govern evidence retained as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

90 — Cleaning Record

Cleaning & Evidence Preservation: govern cleaning record as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

91 — Bearing Surface

Visual & Surface Inspection: govern bearing surface as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

92 — Seal Surface

Visual & Surface Inspection: govern seal surface as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

93 — Shaft Journal

Visual & Surface Inspection: govern shaft journal as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

94 — Housing Bore

Visual & Surface Inspection: govern housing bore as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

95 — Rotor Surface

Visual & Surface Inspection: govern rotor surface as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

96 — Rotor Edge Boundary

Visual & Surface Inspection: govern rotor edge boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

97 — Contact Mark

Visual & Surface Inspection: govern contact mark as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

98 — Scoring

Visual & Surface Inspection: govern scoring as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

99 — Pitting

Visual & Surface Inspection: govern pitting as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

100 — Corrosion

Visual & Surface Inspection: govern corrosion as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

101 — Heat Discolouration

Visual & Surface Inspection: govern heat discolouration as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

102 — Coating Boundary

Visual & Surface Inspection: govern coating boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

103 — Crack Indication Boundary

Visual & Surface Inspection: govern crack indication boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

104 — Foreign-Object Mark

Visual & Surface Inspection: govern foreign-object mark as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

105 — Visual Disposition

Visual & Surface Inspection: govern visual disposition as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

106 — Instrument Identity

Precision Metrology: govern instrument identity as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

107 — Instrument Status

Precision Metrology: govern instrument status as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

108 — Measurement Method

Precision Metrology: govern measurement method as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

109 — Measurement Location

Precision Metrology: govern measurement location as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

110 — Temperature Context

Precision Metrology: govern temperature context as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

111 — Repeat Reading

Precision Metrology: govern repeat reading as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

112 — Shaft Runout Boundary

Precision Metrology: govern shaft runout boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

113 — Endplay

Precision Metrology: govern endplay as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

114 — Radial Play Boundary

Precision Metrology: govern radial play boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

115 — Housing Bore Boundary

Precision Metrology: govern housing bore boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

116 — Shaft Journal Boundary

Precision Metrology: govern shaft journal boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

117 — Clearance Measurement

Precision Metrology: govern clearance measurement as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

118 — Surface Measurement Boundary

Precision Metrology: govern surface measurement boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

119 — Measurement Uncertainty

Precision Metrology: govern measurement uncertainty as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

120 — Metrology Record

Precision Metrology: govern metrology record as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

121 — Manufacturer Limit

Approved Limits & Comparison: govern manufacturer limit as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

122 — Specialist Approved Limit

Approved Limits & Comparison: govern specialist approved limit as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

123 — Drawing/Revision

Approved Limits & Comparison: govern drawing/revision as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

124 — Service Bulletin Boundary

Approved Limits & Comparison: govern service bulletin boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

125 — Measurement Basis

Approved Limits & Comparison: govern measurement basis as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

126 — New-Part Dimension Boundary

Approved Limits & Comparison: govern new-part dimension boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

127 — Service Limit

Approved Limits & Comparison: govern service limit as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

128 — Reuse Limit Boundary

Approved Limits & Comparison: govern reuse limit boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

129 — Repair Limit Boundary

Approved Limits & Comparison: govern repair limit boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

130 — Reject Limit Boundary

Approved Limits & Comparison: govern reject limit boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

131 — No-Limit-Available Status

Approved Limits & Comparison: govern no-limit-available status as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

132 — Assumption

Approved Limits & Comparison: govern assumption as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

133 — Deviation

Approved Limits & Comparison: govern deviation as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

134 — Review Approval

Approved Limits & Comparison: govern review approval as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

135 — Comparison Record

Approved Limits & Comparison: govern comparison record as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

136 — Reusable

Disposition Engineering: govern reusable as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

137 — Replace

Disposition Engineering: govern replace as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

138 — Machine/Rework If Approved

Disposition Engineering: govern machine/rework if approved as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

139 — Reject

Disposition Engineering: govern reject as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

140 — Further Inspection

Disposition Engineering: govern further inspection as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

141 — Specialist Escalation

Disposition Engineering: govern specialist escalation as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

142 — Bearing/Seal Pathway

Disposition Engineering: govern bearing/seal pathway as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

143 — Rotor/Clearance Pathway

Disposition Engineering: govern rotor/clearance pathway as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

144 — Housing Pathway

Disposition Engineering: govern housing pathway as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

145 — Shaft Pathway

Disposition Engineering: govern shaft pathway as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

146 — Parts Availability

Disposition Engineering: govern parts availability as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

147 — Repairability Boundary

Disposition Engineering: govern repairability boundary as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

148 — Risk/Uncertainty

Disposition Engineering: govern risk/uncertainty as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

149 — Disposition Rationale

Disposition Engineering: govern disposition rationale as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

150 — Report Approval

Disposition Engineering: govern report approval as a traceable inspection control. Record component identity/orientation, as-found condition, measurement method, instrument, exact location, applicable approved limit/source, result, uncertainty and disposition. Do not state 'within tolerance' merely because a dimension appears reasonable or resembles another airend. If the approved limit for the actual unit is unavailable, record the measurement without inventing acceptance.

151 — Premium Airend Inspection & Measurement Register

152 — Inspection Disposition Matrix

155 — Cleaning Can Destroy Evidence

Photograph and preserve debris, deposits, lubricant and wear patterns before cleaning changes the condition.

156 — Measurement Without a Limit Is Not Acceptance

A valid measurement can exist without an approved service limit. Report the value and uncertainty; do not manufacture a tolerance.

158 — Technical / Inspection Verification Gate

Verify external baseline, controlled disassembly, component traceability, measurement method, approved limit source and disposition. No 'within tolerance' statement without both method and actual-airend limit.

160 — AEO / Engineering FAQ Layer

Answer what should be checked before opening an airend, how disassembly evidence is preserved, what measurements need approved limits, how components are dispositioned and why generic tolerances are unsafe.