76-12-02: Tail Rotor Yoke
FAA order 76-12-02 is an airworthiness directive in force since July 14, 1976. The FAA's subject line: Tail Rotor Yoke. It names Bell-Carson 47: about 5 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, 47D, 47D1, 47E, 47G, 47G-2, 47H-1
- On this site
- Bell-Carson 47 5 registered
Dates and paperwork
- In force since
- July 14, 1976
- 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 (1,159 characters)
76-12-02 BELL: Amendment 39-2638. Applies to Bell Models 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2, and 47H-1 helicopters certificated in all categories.
Compliance required as indicated.
To prevent possible fatigue failure of the tail rotor yoke, Part Number 47-641-057-9, remove and replace tail rotor yokes having Serial Numbers SR29-50501 through SR29-50507, SR-29-50509 through SR29-50528, SR29-50530 through SR29-50533, SR29-50535 through SR29-50537, SR29-50539 through SR29-50544, and SR29-50546 through SR29-50554, as specified below.
(a) Replace those yokes with 390 or more hours' total time in service on the effective date of this AD, within 10 hours' time in service.
(b) Replace those yokes with less than 390 hours' total time in service on the effective date of this AD, prior to accumulating 400 hours' total time in service.
(c) Compliance with Bell Helicopter Company Service Bulletin Number 47-05-73-1, Revision A, dated November 18, 1975, fulfills compliance with this AD.
(d) The requirements of this AD do not affect other Model 47 series helicopter tail rotor yokes.
This amendment becomes effective July 14, 1976.
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 October 27, 2026. Connections as data: /graph/directive/76-12-02.json · aircraft systems.