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Airworthiness Directive 2020-08-04

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Official AD 2020-08-04 · FR doc 2020-08002 · 2020-04-16 · turbine engine

Airworthiness Directives; International Aero Engines LLC, Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines, LLC (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1129G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G- JM, PW1124G1-JM, and PW1122G-JM model turbofan engines. This AD was prompted by reports of failures of certain low-pressure turbine (LPT) 3rd-stage blades. This AD requires replacement of the affected LPT 3rd- stage blades. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-08-04 applies to

MakesInternational Aero Engines (Iae)
ModelsPW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1129G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, PW1122G-JM, PW1100G-JM
Part-conditional — 5387343, 5387493, 5387473, 5387503.

Applies to engines with low-pressure turbine (LPT) 3rd-stage blades of the listed part numbers installed; does not apply to engines with serial numbers listed in paragraph (g) of AD 2019-25-01 (84 FR 65666, November 29, 2019).

Whether AD 2020-08-04 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 2020-08-04 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.