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Airworthiness Directive 2016-08-09

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Official AD 2016-08-09 · FR doc 2016-09687 · 2016-04-27 · turbine engine

Airworthiness Directives; Pratt & Whitney Division Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4000-94 inch and PW4000-100 inch model turbofan engines. This AD was prompted by a report of a crack found in the high-pressure compressor (HPC) 10th stage disk. This AD requires performing an ultrasonic inspection (USI) or an eddy current inspection (ECI) of the HPC 10th stage disk. We are issuing this AD to prevent failure of the HPC 10th stage disk, uncontained disk release, damage to the engine, and damage to the airplane.

Which aircraft AD 2016-08-09 applies to

MakesPratt & Whitney
ModelsPW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, PW4650, PW4164, PW4168, PW4168A, PW4164C, PW4164C/B, PW4170, PW4168A-1D, PW4168-1D, PW4164-1D, PW4164C-1D, PW4164C/B-1D, PW4000
Part-conditional — 51H710, 53H976-06.

Applies to PW4050/4052/4056/4060/4060A/4060C/4062/4062A/4152/4156/4156A/4158/4160/4460/4462/4650 engines (including models with a '-3' suffix) with HPC 10th stage disk P/N 51H710 (S/N listed in Table 1 of PW ASB PW4ENG A72-833 dated Aug 20, 2015) or P/N 53H976-06 (S/N listed in Table 2 of that ASB) installed; and to PW4164/4168/4168A/4164C/4164C-B/4170/4168A-1D/4168-1D/4164-1D/4164C-1D/4164C-B-1D engines with HPC 10th stage disk P/N 53H976-06 (S/N listed in Table 1 of PW ASB PW4G-100-A72-255 dated Aug 31, 2015) installed.

Whether AD 2016-08-09 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 2016-08-09 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.