Is AD 2004-01-09 a recurring Airworthiness Directive?

No — AD 2004-01-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2004-01-09 apply to?

AD 2004-01-09 applies to Eurocopter — models AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2004-01-09

one-time

Official AD 2004-01-09 · FR doc 04-268 · 2004-01-09 · airframe

Airworthiness Directives; Eurocopter France Model AS355E, F, F1, F2, and N Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters that requires revising the Limitations section of the Rotorcraft Flight Manual (RFM) to prohibit using the landing light except for landing and takeoff until the 40 amp 10P1 and 10P2 contactors are replaced with 50 amp circuit breakers. Also, this amendment requires upgrading the electrical master boxes. This amendment is prompted by three reports of complete loss of electrical power generating systems, except for the direct battery power, due to a combination of high outside temperature and long flight duration with the landing light on that causes the nontemperature compensated trip switches to prematurely trip. The actions specified by this AD are intended to prevent failure of the helicopter power generator systems, loss of the use of flight instruments, and subsequent loss of control of the helicopter.

Which aircraft AD 2004-01-09 applies to

MakesEurocopter

ModelsAS355E, AS355F, AS355F1, AS355F2, AS355N, AS355

Whether AD 2004-01-09 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 2004-01-09 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.