Is AD 2003-15-08 a recurring Airworthiness Directive?

No — AD 2003-15-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2003-15-08 apply to?

AD 2003-15-08 applies to Eurocopter. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2003-15-08

one-time

Official AD 2003-15-08 · FR doc 03-19575 · 2003-08-06 · airframe

Airworthiness Directives; Eurocopter France Model AS350B, B1, B2, B3, BA, and D Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters that requires replacing the main gearbox (MGB) opening neoprene cowling seals (seals) with airworthy glass/silicone seals. This amendment is prompted by the discovery that neoprene seals currently installed on the MGB opening cowlings do not provide the fire protection required by the airworthiness standards. The actions specified by this AD are intended to prevent a fire in the engine compartment from reaching the MGB compartment that contains parts that are not fire resistant and subsequent loss of control of the helicopter.

Which aircraft AD 2003-15-08 applies to

MakesEurocopter

Applies to Eurocopter helicopters per the AD's Applicability section (specific model not named in this excerpt). Requires replacing main gearbox (MGB) opening neoprene cowling seals with glass/silicone seals per Eurocopter Alert Service Bulletin No. 53.00.31, dated July 11, 2002, to prevent an engine-compartment fire from reaching the MGB compartment; the replacement is terminating action.

Whether AD 2003-15-08 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 2003-15-08 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.