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Airworthiness Directive 2018-17-14

one-time
Official AD 2018-17-14 · FR doc 2018-21378 · 2018-10-03 · turbine engine

Airworthiness Directives; General Electric Company CF34-8E Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8E turbofan engines. This AD was prompted by a report from GE regarding a quality escape of nonconforming thrust reverser fire seals. This AD requires a one-time inspection of the gap between the core cowl seal and the pylon seal of the thrust reverser for correct gap width, and replacement of the seals, if needed. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2018-17-14 applies to

MakesGeneral Electric Company
ModelsCF34-8E, CF34
Serial-conditional — narrows to serials HRD00659–HRD00662, HRD00675–HRD00678, HRD00680–HRD00680, HRD00681–HRD00681, HRD00694–HRD00697, HRD00711–HRD00711, HRD00831–HRD00831, HRD00856–HRD00856, HRD00878–HRD00895, HRD01025–HRD01025, HRD01040–HRD01040, HRD01047–HRD01047, HRD01050–HRD01057, HRD01059–HRD01089, HRD01104–HRD01104, HRD01105–HRD01105, HRD01108–HRD01108, HRD01111–HRD01116, HRD01118–HRD01121, HRD01123–HRD01123, HRD01124–HRD01124, HRD01126–HRD01126, HRD01162–HRD01162, HRD01185–HRD01198, HRD01201–HRD01201, HRD01202–HRD01202, HRD01226–HRD01243, HRD00669–HRD00678, HRD00680–HRD00680, HRD00681–HRD00681, HRD00703–HRD00707, HRD00722–HRD00722, HRD00825–HRD00825, HRD00919–HRD00919, HRD00922–HRD00922, HRD01018–HRD01018, HRD01022–HRD01022, HRD01023–HRD01023, HRD01027–HRD01033, HRD01035–HRD01035, HRD01036–HRD01036, HRD01038–HRD01038, HRD01039–HRD01039, HRD01041–HRD01046, HRD01048–HRD01048, HRD01049–HRD01049, HRD01059–HRD01079, HRD01081–HRD01081, HRD01082–HRD01082, HRD01084–HRD01092, HRD01100–HRD01100, HRD01117–HRD01117, HRD01140–HRD01140, HRD01146–HRD01146, HRD01162–HRD01162, HRD01185–HRD01187, HRD01189–HRD01198, HRD01201–HRD01201, HRD01202–HRD01202, HRD01210–HRD01210, HRD01213–HRD01223.
Part-conditional — 15G0002-013, 15G0002-014, 15G0003-013, 15G0003-014.

Applies to CF34-8E engines with LH half thrust reverser P/N 15G0002-013 or -014 installed within the listed LH serial ranges, or RH half thrust reverser P/N 15G0003-013 or -014 installed within the listed RH serial ranges (LH ranges listed first, then RH ranges, in serial_ranges).

Whether AD 2018-17-14 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 2018-17-14 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.