# AD 77-22-04: Landing Gear

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters SA341G
- Effective: November 28, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-3068
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/70AF53F69C69110886256A3300709325.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-22-04

## The airworthiness directive

77-22-04 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (S.N.I.A.S.): Amendment 39-3068. Applies to Models SA341G "Gazelle" helicopters, certificated in all categories, equipped with any of the following landing gear:

Low-skid, low-frequency landing gear P/Ns 341A.41.5200.00 to .04 not incorporating Mod. AMS 07.1349/S.371. P/Ns 341A.41.5200.05 to .11 incorporating Mod. AMS 07.1349 but not incorporating Mod. AMS 07.1578/S.440.

High-skid, low-frequency landing gear P/N 341A.41.5300.00 not incorporating Mod. AMS 07.1350. P/Ns 341A.41.5300.01 to .11 incorporating Mod. AMS 07.1350 but not incorporating Mod. AMS 07.1579.

Compliance is required within the next 500 hours time in service after the effective date of this AD, but not later than January 31, 1978, unless already accomplished.

To prevent possible excessive corrosion remove the landing gear, inspect for corrosion, and if corrosion is found, replace, or turn 180 degrees and thereafter replace, the landing gear members, as necessary and reinstall all in accordance with Paragraph C of "Gazelle" Service Bulletin No. 01.10 dated September 12, 1975, revised December 13, 1976 and the Models SA341G "Gazelle" Repair Manual or an FAA approved equivalent.

This Amendment becomes effective November 28, 1977.

## 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/77-22-04/models.md
Every aircraft: https://openairdocs.org/ad/77-22-04/aircraft.md

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.