# AD 76-07-10: Main Gear Box  Attachment

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters SA341G
- Effective: April 22, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2573
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E98E30DD6FFDC12286256A330070726A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-07-10

## The airworthiness directive

76-07-10 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE: Amendment 39- 2573. Applies to Model SA341G helicopters, certificated in all categories.

Compliance is required as indicated.

To prevent possible inflight failure of main gear box (MGB) attachment, accomplish the following:

a) Within the next 200 hours time in service after the effective date of this AD, unless already accomplished, remove, inspect, reinstall or rectify as prescribed, and reidentify the following components in accordance with the applicable provisions of the "Description" paragraph 1C of Gazelle Service Bulletin No. 01.02, as amended October 31, 1973, or an FAA- approved equivalent:

  (1) MGB forward and rear "A" frames, P/N 341A.38.1019.00, .02 and .04, and P/N 341A.38.1016.00, .02 and .04, respectively.

  (2) MGB forward and rear shackles, P/N 341A.38.1017.00 and .01, and P/N 341A.38.1079.00 and .01, respectively, and associated pins, P/N 341A.31.4169.20 and .21.

b) Within the next 3000 hours time in service after the accomplishment of paragraph (a) of this ad or within the next 3000 hours time in service after the accomplishment of the "Description" paragraph 1C of Gazelle Service Bulletin No. 01.02, as amended October 31, 1973, whichever occurs sooner, and thereafter at intervals not to exceed 3000 hours time in service from time of replacement, replace the MGB forward and rear shackles, P/N's 341A.38.1017.00 and .01 and P/N's 341A.38.1079.00 and .01, respectively, with new shackles of the same part number.

This supersedes Amendment 39-1629 (39 FR 9660), AD 73-09-05.

This amendment becomes effective April 22, 1976.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H6EU](https://openairdocs.org/tcds/H6EU): Airbus Helicopters; names 1 of 2 models: SA341G

## 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: 23 (23 by airframe model, 0 by engine model)
- Makers: Aerospatiale 20, S N I A S 2, Eurocopter France 1

Models with the most aircraft:

- [Aerospatiale SA341G GAZELLE](https://openairdocs.org/model/aerospatiale-sa341g-gazelle): 20 aircraft (airframe model)
- [S N I A S SA341G](https://openairdocs.org/model/s-n-i-a-s-sa341g): 2 aircraft (airframe model)
- [Eurocopter France SA 341G](https://openairdocs.org/model/eurocopter-france-sa-341g): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/76-07-10/models.md
Every aircraft: https://openairdocs.org/ad/76-07-10/aircraft.md

Its text cites no advisory circulars or STCs.

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