Airworthiness Directive · Amendment 39-12016 · McDonnell Douglas Model MD-11 Series Airplanes
McDonnell Douglas Model MD-11 Series Airplanes
Model MD-11 series airplanes, as listed in McDonnell Douglas Alert Service Bulletin MD11-25A187, Revision 01, dated January 5, 2000; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires modification of the insulation blankets in the area surrounding the main external power ground studs. This action is necessary to prevent smoke and fire in the forward cargo compartment due to burn damage to the insulation blankets in the area surrounding the main external power ground studs. This action is intended to address the identified unsafe condition.
To prevent smoke and fire in the forward cargo compartment due to burn damage to the insulation blankets in the area surrounding the main external power ground studs, accomplish the following:
(a) Within one year after the effective date of this AD, modify the insulation blankets in the area surrounding the main external power ground studs in accordance with McDonnell Douglas Alert Service Bulletin MD11-25A187, Revision 01, dated January 5, 2000.
