Airworthiness Directive · Amendment 39-12195 · McDonnell Douglas Model DC-8 Series Airplanes
McDonnell Douglas Model DC-8 Series Airplanes
Model DC-8 series airplanes, as listed in McDonnell Douglas Alert Service Bulletin DC8-33A053, Revision 02, dated November 1, 1999; certificated in any category; except those airplanes on which McDonnell Douglas Service Bulletin 33-53, dated February 13, 1970, or Revision 1, dated August 5, 1975, has been accomplished.
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-8 series airplanes, that requires installation of heat shrinkable tubing or application of Peel-Kote on each terminal connection of all cabin lighting switches in the forward and aft cabin electrical service panels. This action is necessary to prevent a short circuit within the cabin electrical service panel due to a foreign object being lodged between the terminals of a cabin light switch. Such a short circuit could result in overheating and damage to light circuits, and consequent smoke and fire in the main cabin of the airplane. This action is intended to address the identified unsafe condition.
