55-14-01: Bearing Hanger Support Bracket
FAA order 55-14-01 is an airworthiness directive. The FAA's subject line: Bearing Hanger Support Bracket. It names Bell 47: about 478 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Scotts-Bell 47 Inc
- Models
- 47G
- On this site
- Bell 47 478 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (750 characters)
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.
Related safety bulletins advice on the same designs, not orders
2001-02-09SW-01-13 ·
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/55-14-01.json · aircraft systems.