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Airworthiness Directive 2010-24-14

recurring
Official AD 2010-24-14 · FR doc 2010-31723 · 2010-12-17 · turbine engine

Airworthiness Directives; Pratt & Whitney PW4000 Series Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney PW4000 series turbofan engines. This AD requires initial and repetitive borescope inspections (BSI) or fluorescent penetrant inspections (FPI) for cracks in the anti-vortex tube (AVT) shelf slots on the 10th stage disk of the high-pressure compressor (HPC) drum rotor disk assembly. This AD results from 47 reports received since 2007 of HPC 10th stage disks found cracked in the AVT shelf slots during shop visit inspections. We are issuing this AD to prevent failure of the HPC 10th stage disk, uncontained engine failure, and damage to the airplane.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2010-24-14 applies to

MakesPratt & Whitney
ModelsPW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, PW4650, PW4168A-1D, PW4170, PW4164-1D, PW4168-1D, PW4000
Serial-conditional — narrows to serials P735001–P735039.

Applies to PW4000-94" series engine models (all with a ring case configuration rear HPC that includes a 9th stage compressor stator segment assembly with 24 slots), to PW4000-100" series PW4168A-1D and PW4170 engines with serial numbers P735001 through P735039, and to all engines converted to PW4164-1D, PW4168-1D, PW4168A-1D, or PW4170 models.

Whether AD 2010-24-14 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 2010-24-14 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.