Is AD 2001-19-51 a recurring Airworthiness Directive?

No — AD 2001-19-51 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2001-19-51 apply to?

AD 2001-19-51 applies to Eurocopter — models SA341G, SA342J, SA-360C, SA341, SA342, SA-360. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2001-19-51

one-time

Official AD 2001-19-51 · FR doc 01-29189 · 2001-11-23 · airframe

Airworthiness Directives; Eurocopter France Model SA341G, SA342J, and SA-360C Helicopters

What this AD requires

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2001-19-51, which was sent previously to all known U.S. owners and operators of Eurocopter France (ECF) Model SA341G, SA342J, and SA-360C helicopters by individual letters. This AD requires, before further flight, replacing a certain unairworthy main rotor head torsion tie bar (tie bar) with an airworthy tie bar. This AD also requires revising the limitations section of the maintenance manual by adding a life limit for certain tie bars. This AD is prompted by an accident involving an ECF Model SA341G helicopter due to the failure of a tie bar. The actions specified by this AD are intended to prevent failure of a tie bar, loss of a main rotor blade, and subsequent loss of control of the helicopter.

Which aircraft AD 2001-19-51 applies to

MakesEurocopter

ModelsSA341G, SA342J, SA-360C, SA341, SA342, SA-360

Part-conditional — 341A31-4904-00, 341A31-4904-01, 341A31-4904-02, 341A31-4904-03, 341A31-4933-00, 341A31-4933-01, 360A31-1097-02, 360A31-1097-03.

Applies only when one of the listed main rotor head torsion tie bar part numbers is installed.

Whether AD 2001-19-51 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 2001-19-51 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.