# AD 75-09-01: Under Floor Lounge

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin L-1011-385-1
- Effective: April 21, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2172
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/00D4C769394C9047862569750048B12E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-09-01

## The airworthiness directive

75-09-01 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-2172. Applies to L-1011-385-1-193L airplanes, Serial Nos. 1064, 1079, 1114, 1120, and 1125, certificated in all categories. After receipt of this AD, occupancy of the under floor lounge is prohibited until the conformity of the under floor lower lounge floor boards and the related applicable components is verified to establish adherence to the configuration defined by FAA Sealed Drawing List L-1011- 385-1, No. 385-1, supplement entitled, "FAA List for Model L Peculiars" and "Model L Peculiars Drawing List Addendum", dated May 10, 1974, or FAA-approved equivalent configuration. The conformity inspection shall be accomplished by the Chief, Aircraft Engineering Division, FAA Western Region, or his authorized representative.

This amendment becomes effective April 21, 1975, for all persons except those to whom it was made effective by telegram, dated March 18, 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 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/75-09-01/models.md
Every aircraft: https://openairdocs.org/ad/75-09-01/aircraft.md

Its text cites no advisory circulars or STCs.

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