AD Amdt-39-9897
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211-535E4 and -535E4- B Series | Airworthiness Directives; Rolls-Royce plc RB211-535E4 and -535E4- B Series Turbofan Engines |
Unsafe Condition
Engine rundowns during low idle descent in icing conditions due to compressor stall caused by inadequate minimum compressor discharge P4 stop settings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an improved fuel flow governor with revised minimum compressor discharge P4 stop settings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211-535E4 and -535E4-B series 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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