# AD 75-17-26: Over-Torquing of Engine

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters SA341G
- Effective: August 20, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2331
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0ECE16DBCD5AFD8886256A33006F9CD6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-17-26

## The airworthiness directive

75-17-26 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE: Amendment 39- 2331. Applies to Model SA-341G "Gazelle" helicopters, certificated in all categories, Serial Numbers 1031 and lower, incorporating tail rotor servo jack P/N 67.370.004.00 or P/N 67.370.006.00.

Compliance is required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished in accordance with Gazelle Service Bulletin No. 67.01, dated March 9, 1973.

To prevent over-torquing of engine by application of tail rotor control, replace tail rotor servo jack P/N 67.370.004.00 or P/N 67.370.006.00, with tail rotor servo jack P/N 67.370.008.00.

This amendment becomes effective on August 20, 1975.

## 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/75-17-26/models.md
Every aircraft: https://openairdocs.org/ad/75-17-26/aircraft.md

Its text cites no advisory circulars or STCs.

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