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Airworthiness Directive 2021-24182

recurring
AD 2021-24182 · 2021-11-08 · turbine engine

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce Deutschland GmbH, Formerly BMW Rolls-Royce GmbH) Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-710A2-20 model turbofan engines. This AD was prompted by flight data obtained from airplanes equipped with certain Rockwell Collins avionics and auto- throttle systems that demonstrated significant oscillation of the engine rotor revolution speed during flight. This AD requires initial and repetitive recalculation of the consumed and remaining service life of certain life-limited parts (LLPs). This AD also requires removal of an LLP prior to its approved life limit or within 90 days after the effective date of this AD, whichever occurs later. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2021-24182 applies to

MakesRolls-Royce Deutschland Ltd & Co Kg
ModelsBR700-710A2-20, BR700

Applies to BR700-710A2-20 engines installed and operated on a Bombardier Model BD-700-1A10 or BD-700-1A11 airplane with serial number 9381, 9386, 9401, or 9432 through 9786 inclusive, that have not incorporated Bombardier SB 700-34-5021 Rev 04 (or earlier) or SB 700-34-6021 Rev 04 (or earlier), as applicable (a "pre-mod airplane"); or installed and operated on a pre-mod airplane at any time after January 1, 2017. (Serial numbers given are airplane S/Ns, not engine S/Ns.)

Whether AD 2021-24182 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 2021-24182 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.