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Airworthiness Directive 2021-28136

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AD 2021-28136 · 2021-12-28 · turboprop engine

Airworthiness Directives; Rolls-Royce Corporation (Type Certificate Previously Held by Allison Engine Company) Turboprop Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) AE 2100D3 model turboprop engines. This AD was prompted by an in-flight shutdown (IFSD) of an engine and subsequent investigation by the manufacturer that revealed a crack in the 3rd-stage compressor wheel. This AD requires replacement of the affected 3rd-stage compressor wheel. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-28136 applies to

MakesRolls-Royce Corporation
ModelsAE 2100D3, AE 2100
Serial-conditional — narrows to serials L343502–L343502, L343539–L343539, L343545–L343545, L343546–L343546, L343547–L343547, L343550–L343550, L343553–L343553, L343554–L343554, L343555–L343555, L343566–L343566, L343569–L343569, L343573–L343573, L343576–L343576, L343578–L343578, L343579–L343579, L343580–L343580, L343584–L343584, L343588–L343588, L343593–L343593, L343594–L343594, L343597–L343597, L343602–L343602.
Part-conditional — 23084158.

Applies only to engines with an installed 3rd-stage compressor wheel, P/N 23084158, having one of the serial numbers listed in Figure 1 to paragraph (c) of this AD.

Whether AD 2021-28136 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 2021-28136 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.