47-41-03: Fuel Line Replacement
FAA order 47-41-03 is an airworthiness directive. The FAA's subject line: Fuel Line Replacement. 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: fuel system.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Scotts-Bell 47 Inc
- Models
- 47B, 47B3
- 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 (543 characters)
47-41-03 BELL: (Was Mandatory Note 15 of AD-1H-2.) Applies to Models 47B and 47B3 Helicopters.
Compliance required not later than next 50-hour inspection after December 1, 1947.
To prevent failure of the fuel line connecting the fuel shutoff valve and auxiliary fuel pump, replace the rigid aluminum line with a flexible hose line. On Serial Numbers 2 through 5, 7 through 11, 13 and 14, replace P/N 47-686-001-37 with P/N AN 856A6A or AN 6270-6-14.
(Bell Service Bulletin 47C46 dated June 19, 1947, covers the above installation.)
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/47-41-03.json · aircraft systems.