56-15-03: Elevator Control System
FAA order 56-15-03 is an airworthiness directive. The FAA's subject line: Elevator Control System. 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: flight controls.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Scotts-Bell 47 Inc
- Models
- 47H-1
- 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 (670 characters)
56-15-03 BELL: Applies to Model 47H1 Helicopters, Serial Numbers 1347 Through 1349 and 1351 Through 1371.
Compliance required as soon as possible but not later than August 15, 1956.
Failure of a control cable of the synchronized elevator control system can result in loss of control of the helicopter. Installation of the fail safe synchronized elevator centering spring, Bell Kit No. 47-2573-1, is mandatory and provides a self-centering device for the synchronized elevator so that control of the helicopter can be maintained in event of elevator control cable failure.
(Bell Mandatory Service Bulletin No. 109 dated June 15, 1956, covers this same subject.)
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/56-15-03.json · aircraft systems.