Is AD 2010-21-12 a recurring Airworthiness Directive?

No — AD 2010-21-12 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2010-21-12 apply to?

AD 2010-21-12 applies to Fokker Services — models F.28 Mark 0070, F.28 Mark 0100, F.28. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2010-21-12

one-time

Official AD 2010-21-12 · FR doc 2010-25449 · 2010-10-14 · airframe

Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: * * * * * Recently, a brake fire was reported which was caused by a ruptured brake piston. The fire was quickly extinguished but caused damage to the paint and hydraulic/electrical harness and its components. Detailed investigation showed that a hydraulic lock must have been present close to the affected brake creating enough internal pressure to rupture the piston. The most probable scenario for the hydraulic lock is a loosened (not necessarily disconnected) brake QD [quick-disconnect] coupling. Further investigation of the service experience files at Fokker Services showed that more brake fires have occurred on aeroplanes in a pre-mod SBF100-32-127 configuration. * * * * * The unsafe condition is loss of braking capability and possible brake fires, which could reduce the ability of the flightcrew to safely land the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.

Which aircraft AD 2010-21-12 applies to

MakesFokker Services

ModelsF.28 Mark 0070, F.28 Mark 0100, F.28

Part-conditional — AE70690E, AE70691E, AE99111E, AE99119E.

Applies only to airplanes with any brake quick-disconnect (QD) coupling having one of the listed part numbers installed.

Whether AD 2010-21-12 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 2010-21-12 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.