AD 2011-11-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Rolls-Royce plc (RR) RB211-535 Series Turbofan Engines |
Unsafe Condition
Cracking at the firtrees of LP Turbine discs may result in multiple LP Turbine blade release, potentially beyond the containment capabilities of the engine casings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect low-pressure (LP) turbine stage 1, 2, and 3 discs during specified engine shop visits to detect cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next engine shop visit as defined in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211-535 Series Turbofan Engines installed on airplanes of U.S. registry.
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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