Is AD 99-24278 a recurring Airworthiness Directive?

No — AD 99-24278 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-24278 apply to?

AD 99-24278 applies to Fokker — models 0100. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-24278

one-time

AD 99-24278 · 1999-09-22 · airframe

Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F.28 Mark 0070 and 0100 series airplanes, that requires modification of the electrical wiring of the flight warning computer (FWC), and installation of upgraded computer software into the FWC. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent certain nuisance alerts generated by the FWC and to ensure annunciation of certain flight alerts by the FWC during initial climb. Such nuisance alerts or failures to annunciate certain alerts could result in an improper response by the flight crew and consequent reduced controllability of the airplane.

Which aircraft AD 99-24278 applies to

MakesFokker

Models0100

certain

Whether AD 99-24278 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 99-24278 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.