Airworthiness directives › 2004-19-08
AD 2004-19-08 Airworthiness Directives; Rolls-Royce plc RB211 Trent 800 Series Turbofan Engines
Applicability*9
This AD applies to Rolls-Royce plc (RR) RB211 Trent 800 series turbofan engines. These engines are installed on, but not limited to, Boeing 777 airplanes.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. (f) Within the next 40 days after the effective date of this AD, revise the Time Limits Manual (TLM), and for air carrier operations revise the approved continuous airworthiness maintenance program, by adding the following: “GROUP A PARTS MANDATORY INSPECTION (1) Inspections referred to as ‘Focus Inspect’ in the applicable Engine Manual inspection Task are mandatory inspections for the components given below, when the conditions that follow are satisfied: (i) When the component has been completely disassembled to piece-part level as given in the applicable disassembly procedures contained in the Engine Manual; and (ii) The part has more than 100 recorded flight cycles in operation since the last piece-part inspection. or (iii) The component removal was for damage or a cause directly related to its removal; or (iv) Where serviceable used components, for which the inspection history is not fully known, are to be used again. (2) The list of Group A Parts is specified below: Part nomenclature Part number Inspected per overhaul manual task Low Pressure Compressor Rotor Disc All 72-31-16-200-801 Low Pressure Compressor Rotor Shaft All 72-31-20-200-801 Intermediate Pressure Compressor Rotor Shaft All 72-32-31-200-801 Intermediate Pressure Rear Shaft All 72-33-21-200-801 High Pressure Compressor Stage 1 to 4 Rotor Discs Shaft All 72-41-31-200-801 High Pressure Compressor Stage 5 & 6 Discs and Cone All 72-41-31-200-802 High Pressure Turbine Rotor Disc All 72-41-51-200-801 Intermediate Pressure Turbine Rotor Disc All 72-51-31-200-801 Intermediate Pressure Turbine Rotor Shaft All 72-51-33-200-801 Low Pressure Turbine Stage 1 Rotor Disc All 72-52-31-200-801 Low Pressure Turbine Stage 2 Rotor Disc All 72-52-31-200-802 Low Pressure Turbine Stage 3 Rotor Disc All 72-52-31-200-803 Low Pressure Turbine Stage 4 Rotor Disc All 72-52-31-200-804 Low Pressure Turbine Stage 5 Rotor Disc All 72-52-31-200-805 Low Pressure Turbine Rotor Shaft All 72-52-33-200-801” Alternative Methods of
Unsafe condition
This AD results from the need to require enhanced inspection of selected critical life-limited parts of RB211 Trent 800 series turbofan engines. The actions specified in this AD are intended to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1