Is AD 2002-14-26 a recurring Airworthiness Directive?

No — AD 2002-14-26 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2002-14-26 apply to?

AD 2002-14-26 applies to Turbomeca — models 1A, 1A1, 1B, 1D, 1D1, Arriel. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2002-14-26

one-time

Official AD 2002-14-26 · FR doc 02-18203 · 2002-07-22 · turboshaft engine

Airworthiness Directives; Turbomeca S.A. Arriel Models 1A, 1A1, 1B, 1D, and 1D1 Turboshaft Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to Turbomeca S.A. Arriel models 1A, 1A1, 1B, 1D, and 1D1 turboshaft engines. This action requires installation of containment shield rings around the free turbine blade area, and installation of a double support around the gearbox free turbine bearing housing. This amendment is prompted by two reports of the cantilevered axis of the free turbine moving from its design position and inducing blade trajectories outside the current design free turbine containment area. This condition can lead to uncontainment of the free turbine during an overspeed event. The actions specified in this AD are intended to prevent uncontainment of the free turbine during an overspeed event, resulting in damage to the helicopter.

Which aircraft AD 2002-14-26 applies to

MakesTurbomeca

Models1A, 1A1, 1B, 1D, 1D1, Arriel

Compliance actions depend on which Turbomeca modifications (TU) are incorporated: para (a) covers Arriel 1A/1A1 with TU13 but not TU99/TU215, and Arriel 1B/1D without TU99/TU215 (install containment shield ring mod TU254 and double support mod TU259); para (b) covers Arriel 1A/1A1 with TU13+TU99 but not TU215, and Arriel 1B/1D/1D1 with TU99 but not TU215 (install additional containment shield ring mod TU255 and double support mod TU259).

Whether AD 2002-14-26 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 2002-14-26 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.