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Airworthiness Directive 2016-12-07

recurring
Official AD 2016-12-07 · FR doc 2016-14406 · 2016-06-21 · turboshaft engine

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines

What this AD requires

We are superseding airworthiness directive (AD) 2010-11-10 for all Turbomeca S.A. Astazou XIV B and XIV H turboshaft engines. AD 2010- 11-10 requires inspection of certain third stage turbine wheels and removal of any damaged wheel. This AD requires expanding the population and frequency of repetitive inspections. This AD was prompted by a report of a third stage turbine wheel crack detected during engine overhaul. We are issuing this AD to prevent uncontained failure of the third stage turbine wheel, which could result in damage to the engine and damage to the helicopter.

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 2016-12-07 applies to

MakesTurbomeca S.A.
ModelsAstazou XIV B, Astazou XIV H, Astazou
Part-conditional — 0 265 25 700 0, 0 265 25 702 0, 0 265 25 706 0, 0 265 25 705 0.

Applies to 3rd stage turbine wheels P/N 0 265 25 700 0 (all S/N), P/N 0 265 25 702 0 (all S/N), P/N 0 265 25 706 0 (all S/N), or P/N 0 265 25 705 0 (S/N listed in Appendix 2.1 of Turbomeca MSB No. 283 72 0804, Version D, dated July 24, 2015) that incorporate modification AB173 (SB No. 283 72 0091) or modification AB208 (SB No. 283 72 0117); does not apply to wheels incorporating SB No. 283 72 805.

Whether AD 2016-12-07 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 2016-12-07 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.