Airworthiness Directive · Amendment 39-14823 · Rolls-Royce, plc RB211 Trent 768-60, 772-60, and 772B-60 Turbofan Engines
Rolls-Royce, plc RB211 Trent 768-60, 772-60, and 772B-60 Turbofan Engines
Superseded. A later AD replaced this one: AD 2007-24-09. Comply with the one in force.
This AD applies to Rolls-Royce plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines that do not incorporate RR Service Bulletin RB.211-71-F117 or RB.211-72-048. These engines are installed on, but not limited to, Airbus A330 series airplanes.
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce, plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. This AD requires initial and repetitive on-wing or in-shop inspections of the high pressure (HP)/intermediate pressure (IP) turbine bearing oil feed tube heat shield. This AD results from a report that a damaged outer heat shield caused fretting of the oil feed tubes. We are issuing this AD to prevent an uncontained failure of the HP turbine disc and damage to the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
Initially inspect the HP/IP turbine oil feed tube outer heat shield for cracks. Use either 3.A.(1) through 3.A.(3) on-wing procedures or 3.B.(1)(a) through 3.B.(1)(e) in-shop procedures of RR ASB RB.211-72-AF045, Revision 2, dated July 27, 2006, at one of the following compliance times:
(1) At the next shop visit of the 05 Module regardless of the reason for the visit, or
(2) Before one of the following intervals whichever occurs latest:
(i) 30 days from the effective date of this AD, or
(ii) 10,000 hours or 2,500 cycles since new, whichever occurs first, or
(iii) 2,500 cycles since overhaul of the 05 Module.
Re-inspect the HP/IP turbine oil feed tube outer heat shield for cracks as specified in the applicable criteria of paragraphs C.(1)(b)(i) through C(1)(b)(vi) or C(2)(b)(i) through C(2)(b)(ii) of RR ASB RB.211-72-AF045, Revision 2, dated July 27, 2006. Use either 3.A.(1) through 3.A.(3) on-wing procedures or 3.B.(1)(a) through 3.B.(1)(e) in-shop procedures of RR ASB RB.211-72-AF045, Revision 2, dated July 27, 2006.
Remove from service HP/IP turbine oil feed tube outer heat shields according to the applicable criteria in paragraphs C(1)(b)(vii) through C(1)(b)(vii) or C(2)(b)(iii) of RR ASB RB.211-72-AF045, Revision 2, dated July 27, 2006.
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.
