AD 96-13-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Division | PW4050 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4052 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4056 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4060 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4060A | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4060C | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4062 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4152 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4156 | PRATT & WHITNEY Models PW4000 Series Engines |
| engine | Pratt & Whitney Division | PW4156A | PRATT & WHITNEY Models PW4000 Series Engines |
Unsafe Condition
Failure of the aft cascade support frame assembly due to cracks can result in thrust reverser hardware liberation and ejection from the aircraft during thrust reverser operation, contaminating the runway with debris and causing an operational hazard to other aircraft during takeoff and landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect aft cascade support frame assemblies for cracks initially within 250 flight hours after the effective date, then every 450 flight hours. Replace cracked assemblies or lockout thrust reversers for up to 10 days before replacement. Use specified service bulletins for inspections and follow aircraft maintenance manuals for lockout procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Required as indicated, unless accomplished previously.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney PW4000 series engines with thrust reversers (STC No. SJ514NE for Airbus A300-600/A310 and STC No. SE744NE for McDonnell Douglas MD-11) equipped with aft cascade support frame assemblies, Part Numbers 221-0516-503 and 221-0516-504.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.