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Airworthiness Directive 2008-18-08

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Official AD 2008-18-08 · FR doc E8-20212 · 2008-09-09 · turbine engine

Airworthiness Directives; Rolls-Royce plc (RR) RB211 Trent 500, 700, and 800 Series Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Which aircraft AD 2008-18-08 applies to

MakesRolls-Royce
ModelsTrent 553-61, Trent 553A2-61, Trent 556-61, Trent 556A2-61, Trent 556B-61, Trent 560-61, Trent 560A2-61, Trent 768-60, Trent 772-60, Trent 772B-60, Trent 875-17, Trent 877-17, Trent 884-17, Trent 884B-17, Trent 892-17, Trent 892B-17, Trent 895-17, Trent

Installed on, but not limited to, Airbus A330, A340-500, A340-600, and Boeing 777 series airplanes; addresses IP compressor rotor rear balance land cracking.

Whether AD 2008-18-08 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2008-18-08 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.