Airworthiness Directive · Amendment 39-9093 · Rolls-Royce Deutschland Ltd & Co KG Engines
Rolls-Royce Deutschland Ltd & Co KG Engines
This AD applies to Rolls-Royce Deutschland Ltd & Co KG Spey 506-14, Spey 506-14A, Spey 506-14D, Spey 511-14, Spey 511-14W, Spey 555-15, Spey 555-15H, Spey 555-15N, Spey 555-15P.
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 Rolls-Royce, plc Spey series turbofan engines, that requires a one-time inspection of stage 1 and stage 2 high pressure turbine (HPT) and low pressure turbine (LPT) disks for cracks and corrosion pitting. This amendment is prompted by a report of a stage 7 high pressure compressor disk found cracked due to corrosion. The actions specified by this AD are intended to prevent an HPT or LPT disk burst due to cracking attributed to corrosion, which may 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 February 17, 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
