Is AD 96-29863 a recurring Airworthiness Directive?

No — AD 96-29863 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 96-29863 apply to?

AD 96-29863 applies to Air Tractor, Inc — models AT-250, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 96-29863

one-time

AD 96-29863 · 1996-11-26 · airframe

Airworthiness Directives; Air Tractor, Inc. Models AT-250, AT- 300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501, and AT- 502 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Air Tractor, Inc. (Air Tractor) Models AT-250, AT- 300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501, and AT- 502 airplanes that are equipped with a Gerdes part number (P/N) A-850-5 or Cleveland P/N 60-9 parking brake valve. This action requires replacing the parking brake valve with a Scott P/N 4500A-2 parking brake valve. This AD results from several reports of the parking brake valve inadvertently slipping to the ``PARK'' position during flight, which causes constant pressure on the brakes. When the pilot applies the brake upon landing, this pressure causes the airplane to overturn. The actions specified by this AD are intended to prevent the airplane from overturning because of extreme pressure applied to the brake if the parking brake valve inadvertently slips to the ``PARK'' position during flight.

Which aircraft AD 96-29863 applies to

MakesAir Tractor, Inc

ModelsAT-250, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-501

Part-conditional — 4500A-2, 60-9.

certain

Whether AD 96-29863 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 96-29863 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.