Airworthiness Directive · Amendment 39-9897 · Rolls-Royce plc RB211-535E4 and -535E4- B Series Turbofan Engines
Rolls-Royce plc RB211-535E4 and -535E4- B Series Turbofan Engines
Rolls-Royce plc. (R-R) Models RB211-535E4 and - 535E4-B turbofan engines installed on Boeing 757-200 series aircraft.
This amendment adopts a new airworthiness directive (AD), applicable to Rolls-Royce plc RB211-535E4 and -535E4-B series turbofan engines, that requires installation of an improved fuel flow governor that incorporates revised minimum compressor discharge P4 stop settings. This amendment is prompted by reports of engine rundowns during low idle descent during icing conditions. The actions specified by this AD are intended to prevent compressor stall and subsequent engine rundown on one or both engines.
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
