Airworthiness Directive · Amendment 39-9154 · Rolls-Royce plc Engines
Rolls-Royce plc Engines
This AD applies to Rolls-Royce plc RB211-524B-02, RB211-524B-B-02, RB211-524B2-19, RB211-524B2-B-19, RB211-524B3-02, RB211-524C2-19, RB211-524C2-B-19.
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), applicable to certain Rolls- Royce, plc RB211-524 series turbofan engines, that requires a one-time modification of the nozzle guide vane (NGV) assembly to incorporate vane core reinforcement inserts which would prevent release of the stage 2 NGV seal ring, rotor contact, and severance of the rotor drive arm. This amendment is prompted by a report of an uncontained stage 1 low pressure turbine failure. The actions specified by this AD are intended to prevent release of the stage 2 NGV seal ring, which could result in an uncontained engine failure. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of May 8, 1995.
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
