AD 86-08-04 R1
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
Crack propagation and subsequent high pressure compressor (HPC) removable sleeve spacer rupture.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time eddy current inspection of HPC removable sleeve spacers stages 7-8, 8-9, and 9-10 for cracks. Replace all stages of HPC removable sleeve spacers with integral sleeve spacers at the next HPC rotor disassembly, not exceeding 2 calendar years or 4,000 cycles in service, whichever occurs later. Report inspection results within 30 days as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 1,000 cycles in service from the effective date of this AD, or prior to reaching 1,700 cycles since the last in-shop fluorescent penetrant or ultrasonic inspection, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, and -17AR engines.
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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