AD Amdt-39-9116
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 757 | Airworthiness Directives; Boeing Model 757 Equipped With Pratt & Whitney Model PW2000 Series Engines |
| engine | Pratt & Whitney | PW2000 Series | Airworthiness Directives; Boeing Model 757 Equipped With Pratt & Whitney Model PW2000 Series Engines |
Unsafe Condition
Damage to the high pressure compressor of the engines due to ice ingestion caused by ice accumulation and shedding from the first stage of the low pressure compressor (LPC) stator during ground operation in icing conditions.
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Required Actions
Revise the FAA-approved Airplane Flight Manual to include procedures for periodic engine run-ups during ground operation in icing conditions to shed ice before ingestion. Conduct visual checks to detect ice build-up on the LPC stator and remove ice as necessary.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 757 series airplanes equipped with Pratt & Whitney Model PW2000 series 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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