AD 2001-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211 | Airworthiness Directives; Rolls-Royce plc RB211 Turbofan Engines |
Unsafe Condition
Cracks in the rim cooling air holes of certain high pressure (HP) turbine disks, which could lead to disk failure and an uncontained engine failure, potentially causing damage to the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect HP turbine disks for cracks on the rear face of the cooling air holes according to specified criteria and schedules. Replace any cracked HP turbine disk with a serviceable part.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Varies based on disk life and model, with specific deadlines for inspection (e.g., within 800 cycles or at the next shop visit for some models).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc model RB211-535E4-37, RB211-535E4-B-37, RB211-535C-37, RB211-535E4-B-75, and RB211-22B-02 turbofan engines, with specific part numbers and serial number ranges for HP turbine disks.
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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