The FAA today issued three ADs.
The first applies to McDonnell Douglas model MD-11, MD-11F, DC-10-30 and DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F and MD-10-30F airplanes. It mandates inspection of bonding in the fuel tank systems, which if inadequate could create an ignition source in the fuel tank and result in a fuel tank explosion. It takes effect Oct. 17.
The second concerns Pacific Aerospace Model 750XL airplanes. It was issued in response to mandatory continuing airworthiness information (MCAI) that requires operators to inspect the windscreen and cockpit doors windows for signs of disbonding of the adhesive between the transparency and the composite window frame and perform necessary modifications. It becomes effective Oct. 17.
The third applies to McDonnell Douglas Model 717-200 airplanes. It requires inspection of the power conversion distribution unit (PCDU) and the replacement of certain part numbers, due to reports of failed PCDUs, loss of an electrical bus and the presence of a strong electrical burning odor in the flight deck and forward cabin. PCDU failure could result in the loss of all flight displays and consequential emergency landings. It also takes effect Oct. 17.