Is AD 98-2825 a recurring Airworthiness Directive?

No — AD 98-2825 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-2825 apply to?

AD 98-2825 applies to Fokker — models 0070. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-2825

one-time

AD 98-2825 · 1998-02-06 · airframe

Airworthiness Directives; Fokker Model F28 Mark 0100 and 0070 Series Airplanes

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to all Fokker Model F28 Mark 0100 and 0070 series airplanes, that currently requires revising the Airplane Flight Manual (AFM) to include information that will enable the flightcrew to identify failures of the emergency direct current (DC)/alternating current (AC) bus power supply and to take appropriate corrective actions. This amendment requires a new terminating modification for the existing AFM revisions. This amendment also requires a new AFM revision to inform the flightcrew that, under certain conditions, an ``EMER DC BUS'' warning on the multi-function display unit (MFDU) will occur, and to take appropriate corrective actions. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent failures of the emergency DC/AC bus power supply, which could reduce the ability of the flightcrew to control the airplane.

Which aircraft AD 98-2825 applies to

MakesFokker

Models0070

certain

Whether AD 98-2825 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 98-2825 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.