Is AD 03-1304 a recurring Airworthiness Directive?

No — AD 03-1304 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 03-1304 apply to?

AD 03-1304 applies to Bell — models 407. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 03-1304

one-time

AD 03-1304 · 2003-01-24 · airframe

Airworthiness Directives; Bell Helicopter Textron Canada Limited Model 407 Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (Bell) Model 407 helicopters. This action requires visually inspecting certain tailboom gearbox support castings (castings) for cracks and replacing the tailboom assembly if a crack is found. This amendment is prompted by an incident in which a crack was discovered on the casting that holds the tail rotor gearbox and vertical fin. The actions specified in this AD are intended to detect a crack in the casting and prevent failure of the casting, loss of the vertical fin and tail rotor, and subsequent loss of control of the helicopter.

Which aircraft AD 03-1304 applies to

MakesBell

Models407

Part-conditional — 407-030-801-203.

Within 10 hrs TIS/7 days, determine if an affected tailboom and casting are installed per Bell ASB 407-02-53; if so, repetitive (25-hr) visual crack inspection of the casting until replacement tailboom P/N 407-030-801-203 is installed; replace tailboom with an airworthy serial number if cracked and report within 7 days. Affected tailboom/casting serial numbers were listed in the AD's Applicability section, which was not captured in this text slice.

Whether AD 03-1304 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 03-1304 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.