Airworthiness Directive · Amendment 39-12445 · Rolls-Royce plc Engines
Rolls-Royce plc Engines
This AD applies to Rolls-Royce plc RB211-535C-37, RB211-535E4-37, RB211-535E4-B-37, RB211-535E4-B-75.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD) that is applicable to Rolls-Royce plc. (RR) models RB211-535C-37, RB211-535E4-37, RB211-535E4-B-37, and RB211-535E4-B-75 turbofan engines, with radial drive steady bearing, part number (P/N) LK76084. This action requires the replacement of certain radial drive steady bearings, installed in the high speed gearbox drive. This amendment is prompted by five reports of radial drive steady bearing failures. The actions specified in this AD are intended to reduce the risk of engine in-flight shutdown, due to failure at low life of radial drive steady bearings.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
