# AD 75-08-04: Cargo Door Compartment Manual Light Switch

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin L-1011-385-1, L-1011-385-1-14 and L-1011-385-1-15
- Effective: April 9, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2153
- Registered aircraft: 3 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C61C52E1241D7825862569750048AE7B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-08-04

## The airworthiness directive

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.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A23WE](https://openairdocs.org/tcds/A23WE): Lockheed Martin Corporation; names 3 of 4 models: L-1011-385-1-14, L-1011-385-1, L-1011-385-1-15

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 3 (3 by airframe model, 0 by engine model)
- Makers: Lockheed 3

Models with the most aircraft:

- [Lockheed L-1011-385-1](https://openairdocs.org/model/lockheed-l-1011-385-1): 2 aircraft (airframe model)
- [Lockheed L-1011-385-1-15](https://openairdocs.org/model/lockheed-l-1011-385-1-15): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/75-08-04/models.md
Every aircraft: https://openairdocs.org/ad/75-08-04/aircraft.md

Its text cites no advisory circulars or STCs.

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