Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all Fokker Model F.28 Mark 0070 and 0100 series airplanes, that currently requires revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness to incorporate life limits for certain items and inspections to detect fatigue cracking in certain structures. This action would require revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness to incorporate updated Airworthiness Limitation Items, Safe Life Items, and Certification Maintenance Requirements. The actions specified by the proposed AD are intended to ensure the structural integrity of the airplane by ensuring that fatigue cracking of certain structural elements is detected and corrected in a timely manner. This action is intended to address the identified unsafe condition.