Summary
We propose to adopt a new airworthiness directive (AD) for all Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by a report of cracking in a certain section of the secondary structure of the wing. This proposed AD would require a one-time inspection of the trailing edge rib, and corrective action if necessary. We are proposing this AD to detect and correct cracking that could lead to failure of the affected rib and consequent reduced control of the airplane.