AD Amdt-39-11233
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | JT9D Series | Airworthiness Directives; Pratt & Whitney JT9D Series Turbofan Engines |
Unsafe Condition
Presence of weld material in the turbine exhaust case (TEC) wall could lead to TEC structural failure under abnormal operating conditions, resulting in reduced main mount load capability, engine separation from the wing, and potential loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Rescind the requirement for a one-time acid etch inspection of the TEC wall for weld material. No further actions are required under this rescission.
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Compliance Time
Within 30 days after the effective date of this amendment.
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Affected Aircraft
Pratt & Whitney JT9D series turbofan engines, as specified in AD 98-23-07.
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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