Airworthiness Directives; Fokker Model F-28 Mark 0100 Series Airplanes

摘要

This amendment adopts a new airworthiness directive (AD), applicable to Fokker Model F-28 Mark 0100 series airplanes, that requires inspection, necessary repair, and modification of the engine mount shear shelf webs. This amendment is prompted by reports of interference between the engine mount shear shelf web and the fixed cowl mid and aft hooks, which caused fatigue cracks to occur in the web. The actions specified by this AD are intended to prevent fatigue cracking and other damage to the structure of the shear shelf web, which subsequently could lead to loss of the engine mounting structure.