Is AD 99-06-04 a recurring Airworthiness Directive?

No — AD 99-06-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-06-04 apply to?

AD 99-06-04 applies to Eurocopter — models AS332C, AS332L, AS332L1, AS332L2, AS332. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-06-04

one-time

Official AD 99-06-04 · FR doc 99-5725 · 1999-03-10 · airframe

Airworthiness Directives; Eurocopter France Model AS 332C, L, and L1, and L2 Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to Eurocopter France Model AS 332C, L, L1, and L2 helicopters that requires replacing certain circuit breakers. This amendment is prompted by the manufacturer discovering, upon testing a circuit breaker installed in a helicopter, the loss of electrical continuity between the terminals of the installed circuit breaker. The actions specified by this AD are intended to prevent loss of electrical power caused by improper installation of certain circuit breakers, loss of electical power to instrumentation, and subsequent loss of control of the helicopter.

Which aircraft AD 99-06-04 applies to

MakesEurocopter

ModelsAS332C, AS332L, AS332L1, AS332L2, AS332

Part-conditional — 84-402(x).

Inspect/replace circuit breakers per Eurocopter France SB 01.00.49 (Jun 30, 1997); Model AS332C/L/L1 and Model AS332L2 have different breaker sets inspected. Replacing all circuit breakers with type 84-402(x) is terminating action.

Whether AD 99-06-04 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 99-06-04 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.