AD 2004-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | JT9D-3A | Airworthiness Directives; Pratt & Whitney JT9D-3A, -7, -7A, -7AH, -7H, -7F, -7J, -20, and -20J Turbofan Engines |
Unsafe Condition
Failure of the 6th stage low pressure turbine (LPT) air seals, which could lead to LPT damage and an uncontained engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service certain part numbers of 6th stage LPT air seals before accumulating 15,000 cycles-since-new (CSN).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before accumulating 15,000 CSN.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt & Whitney JT9D-3A, -7, -7A, -7AH, -7H, -7F, -7J, -20, and -20J 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
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