# AD 55-14-01: Bearing Hanger Support Bracket

- Type: Airworthiness directive
- Status: Current
- Products: Scotts-Bell 47 47G
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Registered aircraft: 60 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6F2C00680E62B77186256A34004F2FC5.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/55-14-01

## The airworthiness directive

55-14-01 BELL: Applies to Model 47G Helicopters Below Serial Number 1317.

Compliance required as soon as possible, but no later than September 15, 1955.

In order to provide additional support for the No. 1 bearing hangar, P/N 47-664-148-15, and the forward cross tube of the tail boom, P/N 47-267-088-1, it is mandatory that the support bracket installation be completed in accordance with Bell Drawing 47-267-402-1.

(Bell's Mandatory Service Bulletin No. 99, dated April 29, 1955, covers this same subject and outlines the details for the installation.)

NOTE: This does not eliminate the need for the mandatory daily preflight inspection for cracks in the No. 1 bearing hangar area called for in Bell's Maintenance and Overhaul Manual.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H-1](https://openairdocs.org/tcds/H-1): Scott's-Bell 47 Inc; names 1 of 9 models: 47G

## 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: 60 (60 by airframe model, 0 by engine model)
- Makers: Bell 55, Bell-K-Copter 2, Bell-Carson 1, Bell-Shippey 1, Continental Copters 1

Models with the most aircraft:

- [Bell 47G](https://openairdocs.org/model/bell-47g): 55 aircraft (airframe model)
- [Bell-K-Copter 47G](https://openairdocs.org/model/bell-k-copter-47g): 2 aircraft (airframe model)
- [Bell-Shippey BELL 47G](https://openairdocs.org/model/bell-shippey-bell-47g): 1 aircraft (airframe model)
- [Bell-Carson 47G](https://openairdocs.org/model/bell-carson-47g): 1 aircraft (airframe model)
- [Continental Copters 47G](https://openairdocs.org/model/continental-copters-47g): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/55-14-01/models.md
Every aircraft: https://openairdocs.org/ad/55-14-01/aircraft.md

Its text cites no advisory circulars or STCs.

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