AD 86-09-02 R2
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Division | JT8D-1 | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-11 | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-15 | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-15A | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-17 | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-17A | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-17AR | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-17R | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-1A | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
| engine | Pratt & Whitney Division | JT8D-1B | Pratt & Whitney Models JT8D-1,-1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR Engines |
Unsafe Condition
Cracking or other types of distress in combustion chamber liners could result in uncontained engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform initial borescope, visual, or radiographic inspection of combustion chamber liners for cracking or distress per PW ASB 5639 Rev 10. Reinspect liners per tables 2 or 3 of the same ASB based on initial inspection method. Determine reinspection intervals or engine removal per specified paragraphs of the ASB. Scrap or repair removed liners per ASB requirements. Apply magnesium zirconate coating as specified.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
Pratt & Whitney JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR engines without low emission combustion chamber assemblies (P/N 5001958-02, -022, 5001959-02, -022).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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