Summary
The FAA proposes to adopt a new airworthiness directive (AD) for certain McDonnell Douglas DC-10-30 and DC-10-30F (KC-10A and KDC- 10) airplanes. This proposed AD would require installing Teflon sleeving around the fuel pump wire harness inside the conduit in the aft supplemental fuel tank. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.