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Airworthiness Directive 2002-16-25

recurring
Official AD 2002-16-25 · FR doc 02-21355 · 2002-08-22 · turboshaft engine

Airworthiness Directives; Turbomeca S.A. Arriel Models 2 S1, 2 B, and 2 C Turboshaft Engines

What this AD requires

This amendment adopts a new airworthiness directive (AD), that is applicable to Turbomeca S.A. Arriel models 2 S1, 2 B, and 2 C turboshaft engines. This amendment requires initial and repetitive visual inspections for fuel leaks, and replacement of fuel pumps that are found leaking fuel. In addition, this amendment requires that fuel pumps found with pump wall thickness below minimum be removed from service. This amendment is prompted by a manufacturing investigation of pump bodies found to have below minimum material thickness, which could cause fuel leakage through thin, porous walls, reducing fuel pump fire resistance. The actions specified by this AD are intended to prevent fuel leakage, which may cause engine fires that could lead to an in- flight engine shutdown, damage to the helicopter, and forced landing.

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 2002-16-25 applies to

MakesTurbomeca

AD addresses fuel leakage from fuel metering high-pressure/low-pressure (HP/LP) pump assemblies identified by serial number in Appendix 1 of Turbomeca SB No. 292 73 2803 (dated 1999-07-02); requires post-flight visual inspection of the engine bay floor for fuel leaks, repetitive inspections at intervals not exceeding 50 hours if no leak found, or a wall-thickness verification inspection with SN marking; affected pump assemblies must be replaced with a serviceable pump by 2006-12-31. Specific helicopter/engine model and pump serial numbers not reproduced in retrieved text.

Whether AD 2002-16-25 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 2002-16-25 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.