Airworthiness Directive · Amendment 39-14819 · Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 Turbofan Engines.
Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 Turbofan Engines.
This AD applies to Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. These engines are installed on, but not limited to, Airbus A330 airplanes.
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. This AD requires removing from service certain sets of fan blade annulus fillers at a new life limit. This AD results from six reports of fan annulus filler release into the engine. We are issuing this AD to prevent a dual-engine shutdown on twin-engine airplanes.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
On or before December 31, 2006, if an airplane has fan annulus fillers, part number (P/N) FK21226, installed in both engines or has fan annulus fillers, P/N FK21226, in one engine and P/N FK22974, in the other engine, then the accumulated life of the fan annulus fillers on at least one engine must not exceed 7,500 cycles-in-service (CIS). Replace one of the engines, or one set of fan annulus fillers before further flight to comply with this requirement.
After December 31, 2006, remove sets of fan annulus fillers, P/N FK21226, before exceeding the life limit of 6,500 CIS.
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
