# AD 74-26-06: Fire Pull Handle Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin L-1011-385-1
- Effective: March 4, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2104
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ED3433DED1E3072D862569750048A9E1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/74-26-06

## The airworthiness directive

74-26-06 LOCKHEED-CALIFORNIA: Amendment 39-2049 as amended by Amendment 39-2104. Applies to all L-1011-385-1 Series Airplanes certificated in all categories, incorporating Engine Shutoff Control Panel Assemblies, P/N 1520324 or P/N 1580810, all configurations.

Compliance required as indicated, unless already accomplished.

To provide protection in the event of an unknown incipient failure condition in the housing of the fire pull handle assembly, P/N 1520324 or P/N 1580810, accomplish the following:

  (1) Within 600 hours time in service after the effective date of this AD, as amended,

  (a) Modify the Control Panel Assembly, P/N 1520324 or P/N 1580810, in accordance with Part 2 of Lockheed Service Bulletin 093-26-010, dated November 21, 1974, revised February 11, 1975 or later FAA-approved revisions.

  (b) Re-identify all modified Control Panel Assemblies in accordance with Part 3B of Lockheed Service Bulletin 093-26-010, dated November 21, 1974, revised February 11,1975, or later FAA-approved revisions.

  (2) Equivalent repairs or modifications may be approved by the Chief, Aircraft Engineering Division, FAA Western Region, upon submission of adequate substantiating data.

Note: Those engine shutoff control panel assemblies marked as P/N 1604009 or P/N 1605009 are in compliance with this AD.

Amendment 39-2049 was effective December 23, 1974.

This amendment 39-2104 to AD 74-26-06 becomes effective March 4, 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/74-26-06/models.md
Every aircraft: https://openairdocs.org/ad/74-26-06/aircraft.md

Its text cites no advisory circulars or STCs.

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