Airworthiness Directives; M7 Aerospace LLC Airplanes
We propose to adopt a new airworthiness directive (AD) for M7 Aerospace LLC Models SA227-AT, SA227-AC, SA227-BC, SA227-CC, and SA227- DC airplanes equipped with a bayonet shear pin main cabin door latching mechanism. This proposed AD was prompted by fatigue cracks found in the internal door surround doubler, the external skin fuselage skin, and the door corner fittings at the fuselage upper forward corner of the main cabin door cutout. This proposed AD would require repetitively inspecting the four corners of the main cabin door cutout for cracks, making necessary repairs, and reporting inspection results to M7 Aerospace LLC. We are proposing this AD to correct the unsafe condition on these products.
Airworthiness Directives; Vulcanair S.p.A. Airplanes
We are superseding airworthiness directive (AD) 2008-24-11 for Vulcanair S.p.A. Model P68 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking and/or corrosion of the wing spar. We are issuing this AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 767 airplanes. This AD was prompted by reports of bearing damage at certain trailing edge (TE) flap support rib assemblies. This AD requires inspecting certain TE flap support rib assemblies to determine if the bearings have a roller retention feature, and performing corrective actions if necessary; and inspecting for bearing damage of each pair of removed bearings, and performing related investigative and corrective actions if necessary. We are issuing this AD to detect and correct damage to the TE flap support bearings, which could ultimately result in loss of controllability of the airplane.