Airworthiness Directives; Fokker Model F.28 Mark 1000, 2000, 3000, and 4000 Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F.28 Mark 1000, 2000, 3000, and 4000 series airplanes, that requires a one-time inspection to detect the presence of filler plates of the engine support fittings, and corrective action, if necessary. The actions specified by this AD are intended to detect and correct fatigue and stress corrosion in the U- shaped upper and lower legs of the engine support fittings, which could result in reduced structural integrity of the engine support structure. This action is intended to address the identified unsafe condition.