# AD 76-02-06: Main Rotor Blades

- Type: Airworthiness directive
- Status: Current
- Products: Bell Helicopter Textron 204B, 205A-1 and 212
- Effective: February 1, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2502
- Registered aircraft: 125 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/68E9FA84F1DF02BF86256A3400547FD7.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-02-06

## The airworthiness directive

76-02-06 BELL: Amendment 39-2502. Applies to Bell Models 212, 204B, and 205A-1 helicopters certificated in all categories.

Compliance required as indicated after receipt of this AD.

Prior to next flight, remove the main rotor blades having the following Serial Numbers: A2-28211, A2-29920, A2-29325, A2-28198, A2-27872, A2-28195, A2-29315, A2-29919, A2- 29334, A2-29915, A2-28016, A2-27961, A2-27982, A2-27963, A2-28023, A2-28015, A2-28019, A2-27968, A2-27967, A2-28020, A2-03642, A2-03646, and A2-03643.

This supersedes airmail letter dated December 24, 1975, and Amendment 39-2488 (41 F.R. 1738), AD 76-01-05.

This amendment is effective February 1, 1976, and was effective upon receipt for all recipients of the letter dated January 8, 1976, which contained this amendment.

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H1SW](https://openairdocs.org/tcds/H1SW): Bell Textron Inc.; names 2 of 5 models: 204B, 205A-1
- [TCDS H4SW](https://openairdocs.org/tcds/H4SW): Bell Textron Inc.; names 1 of 4 models: 212

## 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: 125 (125 by airframe model, 0 by engine model)
- Makers: Bell 117, Bell Helicopter Textron 6, Bell/Southwest Florida Aviatio 2

Models with the most aircraft:

- [Bell 205A-1](https://openairdocs.org/model/bell-205a-1): 56 aircraft (airframe model)
- [Bell 212](https://openairdocs.org/model/bell-212): 54 aircraft (airframe model)
- [Bell 204-B](https://openairdocs.org/model/bell-204-b): 7 aircraft (airframe model)
- [Bell Helicopter Textron 212](https://openairdocs.org/model/bell-helicopter-textron-212): 5 aircraft (airframe model)
- [Bell/Southwest Florida Aviatio 205 A1](https://openairdocs.org/model/bell-southwest-florida-aviatio-205-a1): 2 aircraft (airframe model)
- [Bell Helicopter Textron 205A-1](https://openairdocs.org/model/bell-helicopter-textron-205a-1): 1 aircraft (airframe model)

All 6 models: https://openairdocs.org/ad/76-02-06/models.md
Every aircraft: https://openairdocs.org/ad/76-02-06/aircraft.md

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.