# AD 75-27-04: Fuel System Modification

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters SA341G
- Effective: January 19, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2476
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0BD1663A909C604686256A330070563C.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-27-04

## The airworthiness directive

75-27-04 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE: Amendment 39- 2476. Applies to Model SA-341G "Gazelle" helicopters, certificated in all categories, serial numbers 1062 and lower, incorporating standard fuel tank P/N 341A.55.1065.1065.20, or .22, or .24.

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. 28.01.

To prevent interruption of fuel flow to the engine during execution of approved flight maneuvers, modify the fuel system to provide for increased fuel sump capacity and an improved booster pump location in accordance with subparagraph 2(B) of Gazelle Service Bulletin No. 28.01, as revised November 21, 1973, or an FAA-approved equivalent.

This amendment becomes effective on January 19, 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/75-27-04/models.md
Every aircraft: https://openairdocs.org/ad/75-27-04/aircraft.md

Its text cites no advisory circulars or STCs.

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