# AD 47-32-06: Rotor Hub Pillow Blocks

- Type: Airworthiness directive
- Status: Current
- Products: Scotts-Bell 47 47B
- Superseded by: Nothing supersedes this AD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/65F512065DC9045C86256A34004D89E1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-32-06

## The airworthiness directive

47-32-06 BELL: (Was Mandatory Note 6 of AD-1H-1.) Applies Only to Model 47B Serial Numbers 5, 8, 9, 10, 11, 12, 15, 16, 20, 21, 22, 24, 25, 26, 27, 30, 31, 35, 36, 37, 39, 41, 42, 43, 45, 51 and 52.

Compliance required before next flight.

Replace the 14ST pillow blocks 47-120-111-1, on the main rotor hub, with 4340 steel pillow blocks, 47-120-111-5, and inspect the hub assembly in accordance with Bell Service Bulletin 47C45 (Revised) dated May 27, 1947. In order to avoid possible structural failure of pillow blocks if extreme misapplication of flight controls are applied, reference "Flight Manual" 47B Series, Section II, paragraph 14B.

## 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 1 of 9 models: 47B

## 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/47-32-06/models.md
Every aircraft: https://openairdocs.org/ad/47-32-06/aircraft.md

Its text cites no advisory circulars or STCs.

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