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Airworthiness Directive 2023-06-14

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Official AD 2023-06-14 · FR doc 2023-08624 · 2023-04-25 · turbine engine

Airworthiness Directives; Pratt & Whitney Canada Corporation Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corporation (P&WC) PW308A and PW308C model turbofan engines. This AD is prompted by a manufacturer's design review, which identified that the combustion chamber outer case (CCOC) to rear compressor case (RCC) flange bolt low cycle fatigue life was inadequate and that those flange bolts may develop cracks resulting in flange bolt fracture. This AD requires replacing all CCOC flange bolts and modifying the CCOC and inner bypass ducts. This AD also prohibits installation of certain flange bolts on any affected engine, as specified in a Transport Canada AD, which is proposed for incorporation by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2023-06-14 applies to

MakesPratt & Whitney Canada
ModelsPW308A, PW308C, PW308
Serial-conditional — narrows to serials ?–PCE-CE0180, ?–PCE-CF0967.

(1) PW308A engines with build specification (BS) BS935 and BS1249, serial numbers PCE-CE0180 and prior; and (2) PW308C engines with BS1047 and BS1238, serial numbers PCE-CF0967 and prior.

Whether AD 2023-06-14 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 2023-06-14 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.