- Effective
- December 12, 1980
- Model
- 107-II
- Data sheet
- TCDS1H16
- Registered aircraft
- 12 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-3987
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 | 19 KB | dcb9aa5d…ead0fcd | FAA DRS (API key needed) |
On this page
The airworthiness directive
80-25-08 BOEING VERTOL (VERTOL): Amendment 39-3987. Applies to Vertol Model 107-II helicopters certificated in all categories.
Compliance required as indicated.
To prevent fatigue failure of the main rotor tension-torsion strap assemblies, remove from service tension-torsion strap assemblies Part No. 107R2003-1 upon the accumulation of 27,800 hours in service and replace with an airworthy part that meets the requirement of this AD.
This amendment is effective December 12, 1980.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 12
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1962 | 5 |
|---|---|
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 1 |
2 with no year recorded