# AD 76-14-05: Fuel System Components

- Type: Airworthiness directive
- Status: Current
- Products: Bell Helicopter Textron Canada 206L
- Effective: August 19, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2669
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EB9A30EB291624B786256A34005494AF.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-14-05

## The airworthiness directive

76-14-05 BELL: Amendment 39-2669. Applies to Model 206L helicopters, Serial Numbers 45006 through 45020, with fuel valve Part Number 206-063-640-1 installed, certificated in all categories.

Compliance required within the next 100 hours time in service after the effective date of this AD, unless already accomplished.

To prevent failure of fuel system components due to excessive pressure from thermal expansion of the fuel after engine shutdown, remove fuel shutoff valve P/N 206-063-640-1 and replace it with fuel shutoff valve P/N 206-063-640-3.

Bell Helicopter Textron Service Bulletin No. 206L-76-2 pertains to this subject and provides approved instructions for this replacement activity.

This amendment becomes effective August 19, 1976.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H2SW](https://openairdocs.org/tcds/H2SW): Bell Textron Canada Limited; names 1 of 12 models: 206L

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Bell 6

Models with the most aircraft:

- [Bell 206L](https://openairdocs.org/model/bell-206l): 6 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/76-14-05/models.md
Every aircraft: https://openairdocs.org/ad/76-14-05/aircraft.md

Its text cites no advisory circulars or STCs.

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