AD 2002-10-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | JT9D-59A | Airworthiness Directives; Pratt & Whitney JT9D-59A, -70A, -7Q, and -7Q3 Turbofan Engines |
Unsafe Condition
Cracks in the knife edges of the high pressure turbine (HPT) second stage airseals, which could lead to failure of the airseals and potentially result in uncontained engine failure and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the HPT second stage airseal knife edges using fluorescent penetrant inspection for cracks each time the airseal is accessible.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Each time the airseal is accessible.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney JT9D-59A, -70A, -7Q, and -7Q3 turbofan engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.