- Effective
- August 16, 1970
- Model
- 206A
- Data sheet
- TCDSH2SW
- Registered aircraft
- 23 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-1029
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 | 800a984d…dc37605 | FAA DRS (API key needed) |
On this page
The airworthiness directive
70-14-06 BELL: Amendment 39-1029. Applies to Model 206A Helicopters, S/N 4 thru 448, 460 thru 464, 467, 469 thru 473 and 475 thru 477, certificated in all categories.
Compliance required not later than 300 hours time in service after the effective date of this Airworthiness Directive, unless already accomplished.
To relieve engine compressor flange loads, replace existing fire-wall-to-compressor seal with a new improved firewall seal kit, Bell Part No. 206-704-026-1, in accordance with applicable paragraphs of Bell Service Letter 206A-142, dated November 5, 1969, or later FAA approved revision. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration.
This amendment becomes effective August 16, 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