- Effective
- October 25, 1978
- Models
- 204B, 205A-1, 212
- Registered aircraft
- 125 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-3303
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 20 KB | 50cad70b…34c25bf | FAA DRS (API key needed) |
On this page
The airworthiness directive
78-20-07 BELL: Amendment 39-3303. Applies to Bell Models 204B and 205A-1 helicopters equipped with fittings, P/N 204-012-102-5, and model 212 helicopters equipped with fittings, P/N 212-010-103-5, certificated in all categories. Compliance required as indicated.
To prevent possible failure of a fitting as a result of a crack in the thrust shoulder radius, accomplish the following:
(a) Remove main rotor inboard strap fittings with 1,100 or more hours total time in service on the effective date of this airworthiness directive (AD) within 100 hours time in service.
(b) Remove main rotor inboard strap fittings with less than 1,100 hours total time in service on the effective date of this AD, prior to attaining 1200 hours' total time in service.
(c) The retirement time of the fittings P/N 204-012-102-5 and 212-010-103-5 is reduced from 3,000 to 1,200 hours time in service.
This amendment is effective October 25, 1978.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 125
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1965 | 1 |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 5 |
| 1969 | 3 |
| 1970 | 2 |
| 1971 | 3 |
| 1972 | 5 |
| 1973 | 7 |
| 1974 | 11 |
| 1975 | 9 |
| 1976 | 5 |
| 1977 | 5 |
| 1978 | 3 |
| 1979 | 14 |
| 1980 | 12 |
| 1981 | 4 |
| 1982 | 4 |
| 1984 | 1 |
| 1991 | 1 |
| 1993 | 2 |
| 1995 | 1 |
25 with no year recorded