AD 75-08-04

75-08-04 LOCKHEED: Amendment 39-2153. Applies to L-1011-385-1 airplanes certificated in all categories.

Compliance required as indicated.

To prevent a possible fire hazard in the C-1 or C-1A, C-2 and C-3 cargo compartment:

(a) Within the next 300 flight hours, perform the following, unless a modification acceptable per (b), below, has been accomplished:

(1) Deactivate the cargo door compartment manual light switch in accordance with Lockheed Service Bulletin 093-33-052, dated March 5, 1975, or later FAA-approved revisions; or an equivalent deactivation modification procedure approved by the Chief, Aircraft Engineering Division, FAA Western Region.

(2) Check the functioning of the door switch which controls the cargo compartment light per Lockheed Service Bulletin 093-33-052, dated March 5, 1975, or later FAA- approved revisions.

(b) Within 3000 hours time in service and each 3000 hours thereafter, recheck the door switch per item (a)(2), above. These tests may be discontinued after installation of a modification to the cargo door light, acceptable to the Chief, Aircraft Engineering Division, FAA Western Region. The approved data must reference this AD, and the approval date.

(c) After incorporation of an acceptable modification, per (b) above, the manual switch may be reactivated.

(d) An airplane may be flown to a base for the performance of the work required by this AD per FAR's 21.197 and 21.199.

This amendment becomes effective April 9, 1975.