Airworthiness Directives; Fokker Services B.V. Airplanes

摘要

We propose to adopt a new airworthiness directive (AD) for certain Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that the butt-joints on the forward fuselage above the passenger door are subject to widespread fatigue damage (WFD). This proposed AD would require inspecting the forward fuselage butt-joints for cracking, repairing any crack, and eventually doing a terminating repair. We are proposing this AD to prevent fatigue cracking of such butt-joints, which could result in reduced structural integrity of the airplane and in-flight decompression of the airplane.