- Effective
- July 13, 1964
- Published
- June 13, 1964
- Models
- Do 28 A-1, Do 28 B-1, Do 28 D, Do 28 D-1
- Registered aircraft
- 7 matched by model
- Product
- Aircraft · Small airplane · Small/large airplane
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 | 254e1543…ba83c17 | FAA DRS (API key needed) |
On this page
The airworthiness directive
64-14-03 DORNIER: Amdt. 746 Part 507 Federal Register June 13, 1964. Applies to All Model DO-28 Aircraft Up to and Including Serial Number 3060.
Compliance required as indicated.
It has been found that the generator and battery relays remain inoperative with low battery voltage so that the electrical system remains without power supply. To correct this condition, accomplish the following:
Within the next 50 hours' time in service, change the electrical wiring as specified by Dornier Technical Bulletin 28-6 dated December 7, 1962.
(Dornier Technical Bulletin No. 28-6 dated December 7, 1962 covers this same subject.)
This directive effective July 13, 1964.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 7
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1961 | 2 |
|---|---|
| 1964 | 2 |
| 1965 | 1 |
2 with no year recorded