Airworthiness Directive · Amendment 39-12952 · Rolls-Royce plc. RB211-535 Turbofan Engines
Rolls-Royce plc. RB211-535 Turbofan Engines
Superseded. A later AD replaced this one: AD 2003-17-15. Comply with the one in force.
The Federal Register printed this AD without its applicability text. Read it at the link below.
This amendment adopts a new airworthiness directive (AD) that is applicable to Rolls-Royce plc. (RR) models RB211-535E4-37, RB211- 535E4-B-37, and RB211-535E4-B-75 turbofan engines, with certain part number (P/N) low pressure (LP) turbine stage 2 discs installed. This action requires establishing new reduced LP turbine stage 2 disc cyclic limits. This action also requires removing from service affected discs that already exceed the new reduced cyclic limit, and removing other affected discs before exceeding their cyclic limits, using a drawdown schedule. The actions specified in this AD are intended to prevent LP turbine stage 2 disc failure, which could result in uncontained engine failure and possible loss of 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.
Engines
