Airworthiness Directive 2008-20-04
one-timeAirworthiness Directives; Rolls-Royce plc RB211 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 2008-20-04 applies to
Applies to RB211-535E4, RB211-535E4-B, RB211-535E4-C, RB211-535C, and RB211-22B series turbofan engines without qualification, and to RB211-524 series turbofan engines EXCEPT those with HP turbine discs incorporating RR SB No. RB.211-72-C109 or RR SB No. RB.211-72-C762. Installed on, but not limited to, Boeing 747, 757, and 767, Lockheed L-1011, and Tupolev Tu204 airplanes.
Whether AD 2008-20-04 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:
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.