Airworthiness directives › 2011-26-08
AD 2011-26-08 Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines
Applicability*9
This AD applies to all Rolls-Royce plc (RR) RB211-Trent 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 895-17 turbofan engines. These engines are installed on, but not limited to, Boeing 777 series airplanes.
Compliance
Within 2,000 hours in service after the effective date of this AD, or before accumulating 3,000 hours-since-new or 3,000 hours-since-last-inspection, whichever is latest, do one of the following: (1) On-Wing Inspection and Clip Replacement Inspect the fan case LP fuel tubes, part numbers (P/Ns) FK22617, FK19213, and FK23986. Replace the clips that hold the fuel tubes in place. Use paragraphs 3.A.(1) through 3.A.(3) (on-wing) of RR Non-modification Alert Service Bulletin (ASB) RB.211-73-AD685, Revision 6, dated February 21, 2011 to do the inspection. Replace any fan case LP fuel tubes that fail inspection. (2) In-Shop Inspection and Clip Replacement Inspect the fan case LP fuel tubes, P/N FK22617, FK19213, and FK23986. Replace the clips that hold the fuel tubes in place with new or serviceable clips. Use paragraphs 3.B.(1) through 3.B.(3) (in-shop) of RR Non-modification ASB RB.211-73-AD685, Revision 6, dated February 21, 2011 to do the inspection. Replace any fan case LP fuel tubes that fail inspection.
Required actions
Repeat the inspection required by paragraphs (f)(1) and (f)(2) of this AD and replace the clips at intervals not exceeding every 3,000 hours time-since-last-inspection.
Unsafe condition
Unless already done, do the following actions.
Affected ADs
None.
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