# AD 74-16-07: Cargo Doors

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin L-1011-385-1
- Effective: September 11, 1974
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-1909
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/56D5BE3B70D74F79862569750048A35F.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/74-16-07

## The airworthiness directive

74-16-07 LOCKHEED: Amendment 39-1909. Applies to Model L-1011-385-1 series aircraft with Lockheed serial numbers 1002 through 1066, certificated in all categories.

Compliance required within 1,800 hours additional time in service after the effective date of this AD, unless already accomplished.

To prevent a single failure from causing a cargo door to open during takeoff roll, accomplish one of the following:

  (a) Modification as described in Lockheed Service Bulletin 093-52-045 dated October 18, 1973, or later FAA-approved revisions.

  (b) Equivalent modifications, approved by the Chief, Aircraft Engineering Division, FAA Western Region.

Aircraft may be flown to a base where maintenance may be performed per FAR's 21.197 and 21.199.

This amendment becomes effective September 11, 1974.

## 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 1 of 4 models: L-1011-385-1

## 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: 2 (2 by airframe model, 0 by engine model)
- Makers: Lockheed 2

Models with the most aircraft:

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

All 1 models: https://openairdocs.org/ad/74-16-07/models.md
Every aircraft: https://openairdocs.org/ad/74-16-07/aircraft.md

Its text cites no advisory circulars or STCs.

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