AD 2010-06-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines |
| engine | Rolls-Royce | plc RB211-Trent 800 Series | Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines |
Unsafe Condition
Blockage of the HP/IP turbine bearing oil vent tube due to carbon deposits can lead to internal oil fires, causing overspeed of the IP turbine rotor and uncontained engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the HP/IP turbine bearing internal and external oil vent tubes and bearing chamber for carbon buildup. Clean and flush the tubes and bearing chamber as required. Reject any oil vent tubes that do not meet inspection requirements after cleaning.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At the next engine shop visit after the effective date of this AD and thereafter at each engine shop visit.
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Affected Aircraft
Rolls-Royce plc models RB211-Trent 875-17, Trent 877-17, Trent 884-17, Trent 884B-17, Trent 892-17, Trent 892B-17, and Trent 895-17 turbofan engines installed on, but not limited to, Boeing 777 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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