# AD 47-41-06: Main Rotor Blade

- Type: Airworthiness directive
- Status: Current
- Products: Scotts-Bell 47 47B and 47B3
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D114CDAB5CB41DEA86256A34004DE4D6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-41-06

## The airworthiness directive

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.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H-1](https://openairdocs.org/tcds/H-1): Scott's-Bell 47 Inc; names 2 of 9 models: 47B, 47B3

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 1 (1 by airframe model, 0 by engine model)
- Makers: Bell 1

Models with the most aircraft:

- [Bell 47B](https://openairdocs.org/model/bell-47b): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/47-41-06/models.md
Every aircraft: https://openairdocs.org/ad/47-41-06/aircraft.md

Its text cites no advisory circulars or STCs.

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