AD 89-24-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Division | JT8D-7 | PRATT & WHITNEY Models JT8D-7, -7A, and -7B Engines |
| engine | Pratt & Whitney Division | JT8D-7A | PRATT & WHITNEY Models JT8D-7, -7A, and -7B Engines |
| engine | Pratt & Whitney Division | JT8D-7B | PRATT & WHITNEY Models JT8D-7, -7A, and -7B Engines |
Unsafe Condition
Engine failure, cowl penetration, fire, or airframe damage associated with a second stage fan disk fracture.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect for spacer presence and protrusion within 100 cycles in service after the effective date. Trim or remove the spacer and inspect the disk if protrusion exceeds specified limits. Remove first stage stator assembly and spacer, and install a new or refurbished assembly by the next shop visit or no later than 4,000 cycles. Eddy current inspect disk pin holes, visually inspect for galling, and dimensionally inspect pin hole diameters. Report inspection results as required.
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Compliance Time
within 100 cycles in service after the effective date of this AD
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Affected Aircraft
Pratt & Whitney JT8D-7, -7A, and -7B 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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