47-32-10: Rotor Mast Assembly Replacement
FAA order 47-32-10 is an airworthiness directive. The FAA's subject line: Rotor Mast Assembly 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: rotorcraft systems.
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 (333 characters)
47-32-10 BELL: (Was Mandatory Note 10 of AD-1H-1.) Applies to Models 47B and 47B3 Helicopters.
Compliance required at the next 50-hour transmission teardown inspection.
Replace the main rotor mast assembly with mast assembly, 47-130-100-2.
(Bell Service Bulletin 47C24, dated June 26, 1947, also 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/47-32-10.json · aircraft systems.