Airworthiness Directive · Amendment 39-12769 · Rolls-Royce plc. RB211 Trent 875, 877, 884, 892, 892B, and 895 Series Turbofan Engines
Rolls-Royce plc. RB211 Trent 875, 877, 884, 892, 892B, and 895 Series Turbofan Engines
Superseded. A later AD replaced this one: AD 2005-01-15. Comply with the one in force.
This airworthiness directive (AD) is applicable to Rolls-Royce plc. (RR) RB211 Trent 875, 877, 884, 892, 892B, and 895 series turbofan engines with low pressure compressor (LPC) fan blades, part numbers (P/N's) FK30838, FK30840, FK30842, FW12960, FW12961, FW12962, and FW13175, installed. These engines are installed on, but not limited to, Boeing Company 777 series airplanes.
This amendment adopts a new airworthiness directive (AD) that is applicable to Rolls-Royce plc (RR) RB211 Trent 875, 877, 884, 892, 892B, and 895 series turbofan engines with certain part number (P/N) low pressure compressor (LPC) fan blades installed. This action requires initial and repetitive ultrasonic inspection of the fan blade dovetail roots. This amendment is prompted by the loss of an LPC fan blade during takeoff. The actions specified in this AD are intended to prevent multiple LPC fan blade failures due to cracks, which could result in uncontained engine failure and possible damage to the airplane.
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.
