47-41-06: Main Rotor Blade
FAA order 47-41-06 is an airworthiness directive. The FAA's subject line: Main Rotor Blade. 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 (355 characters)
47-41-06 BELL: (Was Mandatory Note 18 of AD-1H-2.) Applies to All Models of 47B Series, Through Serial Number 71.
Compliance required prior to next periodic inspection.
The butt plate screws of the main rotor blade should be staked in accordance with Bell Service Bulletin 47C50 dated July 22, 1947, to prevent them from working loose in service.
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/47-41-06.json · aircraft systems.