# AD 77-14-03: Tail Rotor Directional Control

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters SA.316B Alouette III and SE.3160 Alouette III
- Effective: August 1, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2951
- Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8E461CE8C0FE20DD86256C860070A283.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-14-03

## The airworthiness directive

77-14-03 SOCIETE NATIONAL INDUSTRIELLE AEROSPATIALE (formerly SUD AVIATION): Amendment 39-295l. Applies to Alouette III Helicopter Model SE 3160 and SA 316B, certificated in all categories.

Compliance is required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished in accordance with Alouette Service Bulletin No. 05.38, as revised June 14, 1971.

To prevent possible binding of the tail rotor directional control, either replace the Houdaille type AV4S2 hydraulic damper with type AV4S3, or modify the type AV4S2 hydraulic damper by incorporating Houdaille Kit 10.338, in accordance with subparagraph 1C(2)(b) of Alouette Service Bulletin 05.38 as revised June 14, 1971, or equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, c/o American Embassy, A.P.O. New York, N.Y. 09667.

This amendment becomes effective August 1, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H1IN](https://openairdocs.org/tcds/H1IN): Airbus Helicopters; names 2 of 5 models: SA.316B Alouette III, SE.3160 Alouette III

## 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: 4 (4 by airframe model, 0 by engine model)
- Makers: Aerospatiale 2, Sud 2

Models with the most aircraft:

- [Sud SA316B ALOUETTE III](https://openairdocs.org/model/sud-sa316b-alouette-iii): 2 aircraft (airframe model)
- [Aerospatiale SA316B ALOUETTE III](https://openairdocs.org/model/aerospatiale-sa316b-alouette-iii): 2 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/77-14-03/models.md
Every aircraft: https://openairdocs.org/ad/77-14-03/aircraft.md

Its text cites no advisory circulars or STCs.

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