AD 2011-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney | JT8D-209 | Airworthiness Directives; Pratt & Whitney JT8D-209, -217, -217A, -217C, and -219 Series Turbofan Engines |
Unsafe Condition
Failure of Tinidur material LPT-to-exhaust case bolts, as a result of blade failure, leading to turbine blade failures that could result in uncontained engine debris and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect 3rd and 4th stage LPT blades for shroud notch wear using specified procedures. Replace LPT-to-exhaust case bolts with longer bolts made of Tinidur material and install crushable sleeve spacers on the bolts. Replace blades if wear limits are exceeded.
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Compliance Time
Within the compliance times specified in the AD unless the actions have already been performed.
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Affected Aircraft
Pratt & Whitney JT8D-209, -217, -217A, -217C, and -219 series turbofan engines installed on, but not limited to, Boeing 727 series and McDonnell Douglas MD-80 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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