- Effective
- August 15, 1970
- Model
- 206A
- Data sheet
- TCDSH2SW
- Registered aircraft
- 23 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-1025
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 | 27299d26…74fc107 | FAA DRS (API key needed) |
On this page
The airworthiness directive
70-14-05 BELL: Amendment 39-1025. Applies to all Model 206A helicopters certificated in all categories equipped with voltage regulator P/N 206-075-027-3.
Compliance is required within 300 hours time in service after the effective date of this airworthiness directive, unless already accomplished.
Replace the voltage regulator, Bell Part No. 206-075-027-3, in accordance with the instructions in paragraphs 1 through 11, as applicable, of Bell Helicopter Company Service Letter No. 206A-139, Revision "A", dated October 14, 1969, or later FAA approved revision.
Alternate means of compliance or equivalent replacement parts may be acceptable if approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.
This amendment becomes effective August 15, 1970.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 23
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1967 | 3 |
|---|---|
| 1968 | 4 |
| 1969 | 7 |
| 1970 | 2 |
| 1971 | 2 |
5 with no year recorded