- Effective
- July 3, 1967
- Models
- 269A, 269A-1, 269B
- Data sheet
- TCDS4H12
- Registered aircraft
- 134 matched by model
- Product
- Aircraft · Rotorcraft
- Amendment
- 39-440
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 | 15c0592d…ef05c11 | FAA DRS (API key needed) |
On this page
The airworthiness directive
67-21-01 HUGHES: Amdt. No. 39-440, Part 39, Federal Register June 28, 1967, Applies to Hughes Model 269 Series Helicopters.
Compliance required within the next 25 hours' time in service following the effective date of this AD unless already accomplished.
To prevent concentration of carbon monoxide gas in the cabin in excess of the amounts allowable under applicable airworthiness rules, accomplish the following:
Install air scoop, restrict positioning of the upper and lower air vents on the left and right hand door panels to face forward and upward, and seal cabin in accordance with Hughes Service Information Notice No. N-33 dated May 12, 1967, or later approved revision or by a method approved by the Aircraft Engineering Division, FAA Western Region, Los Angeles, California.
This amendment effective July 3, 1967.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 134
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1952 | 1 |
|---|---|
| 1961 | 2 |
| 1962 | 10 |
| 1963 | 12 |
| 1964 | 17 |
| 1965 | 11 |
| 1966 | 12 |
| 1967 | 6 |
| 1968 | 8 |
| 1969 | 6 |
| 1970 | 1 |
| 1971 | 2 |
46 with no year recorded