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Airworthiness Directive 2022-15-04

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Official AD 2022-15-04 · FR doc 2022-15391 · 2022-07-20 · turbine engine

Airworthiness Directives; CFM International, S.A. Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) LEAP-1A model turbofan engines. This AD was prompted by reports of non-synchronous vibrations resulting in more open clearances and potential hot gas ingestion into the high- pressure turbine (HPT) rotor cavity, which may result in thermal degradation of the HPT rotor interstage seal and HPT rotor stage 2 disk. This AD requires inspection of the stage 2 HPT nozzle assembly honeycomb and HPT stator stationary seal honeycomb. Depending on the results of the inspection, this AD requires replacement of the stage 2 HPT nozzle assembly honeycomb, HPT stator stationary seal, HPT rotor interstage seal, and HPT rotor stage 2 disk. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2022-15-04 applies to

MakesCfm International, S.A.
ModelsLEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, LEAP-1A35A, LEAP-1A
Serial-conditional — narrows to serials 598-280–598-280, 598-283–598-283, 598-284–598-284, 598-291–598-291, 598-300–598-300, 598-302–598-302, 598-327–598-327, 598-572–598-572, 598-629–598-629, 598-646–598-646, 598-648–598-648, 598-659–598-659, 598-667–598-667, 598-812–598-812, 598-862–598-862, 598-909–598-909, 599-192–599-192.

Applies only to engines with one of the listed engine serial numbers (ESN).

Whether AD 2022-15-04 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:

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 2022-15-04 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.