Airworthiness Directive · Amendment 39-14498 · Rolls-Royce plc RB211 Trent 500, 700 and 800 Series Turbofan Engines
Rolls-Royce plc RB211 Trent 500, 700 and 800 Series Turbofan Engines
This AD applies to Rolls-Royce plc RB211 Trent 553-61, 556B-61, 556-61, 560-61, 553A2-61, 556A2-61, 556B2-61, 560A2-61, 768-60, 772-60, 772B-60, 892-17, 884-17, 892B-17, 895-17, 675-17, 884B-17, and 877-17 turbofan engines with oil filler cap assembly part number (P/N) 436-408-2 and serial numbers (SNs) 1156 through 1410 not marked with the letter “R” next to the SN. These engines are installed on, but not limited to, Airbus A340-541, A340-642, A330-243, A330-341, A330-342, and Boeing 777 airplanes.
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce plc (RR) RB211 Trent 500, 700, and 800 series turbofan engines. This AD requires inspecting all engines to determine those that are equipped with a suspect oil filler cap assembly. This AD also requires, within seven days of the effective date of this AD, an initial and repetitive check of oil cap security following oil servicing of multiple-engine airplanes having more than one suspect oil filler cap assembly installed. Finally, this AD requires replacing affected oil filler cap assemblies. This AD results from four in- service oil loss events since March 2005, following failures to properly install the oil tank filler cap after oil servicing. We are issuing this AD to prevent oil loss that could result in multiple engine in-flight shutdowns during a flight.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
Identify all engines with oil filler cap assembly, P/N 436-408-2, and SNs 1156 through 1410, not marked with the letter “R” next to the SN.
Within seven days after the effective date of this AD, conduct an independent inspection for security of the oil filler cap after oil servicing on any airplane with more than one of the affected oil filler cap assemblies installed.
(h) Repeat the inspection after every oil servicing.
(i) Replace affected oil filler cap assemblies as follows:
(1) For Trent 768-60, 772-60, 772B-60, 892-17, 884-17, 892B-17, 895-17, 675-17, 884B-17, and 877-17 turbofan engines with two affected oil filler cap assemblies on the same airplane, replace one oil filler cap assembly within 75 days after the effective date of this AD, and the other within 165 days after the effective date of this AD.
(2) For Trent 553-61, 556B-61, 556-61, 560-61, 553A2-61, 556A2-61, 556B2-61, 560A2-61 turbofan engines in position 1 or 4, replace the affected oil filler cap assemblies within 75 days after the effective date of this AD, and
(3) For Trent 553-61, 556B-61, 556-61, 560-61, 553A2-61, 556A2-61, 556B2-61, 560A2-61 engines in position 2 or 3, replace the affected oil filler cap assemblies within 165 days after the effective date of this AD.
For the purposes of this AD, an “independent inspection” means inspection and confirmation by a qualified person who was not involved in the original oil servicing.
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.
