- Models
- D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A, D.H. 104 Dove Series 5BA, D.H. 104 Dove Series 6A, D.H. 104 Dove Series 6BA and 4 more
- Data sheet
- TCDSA-807
- Registered aircraft
- 3 matched by model
- Product
- Aircraft · Small 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 | 2e12b40e…cf692ef | FAA DRS (API key needed) |
On this page
The airworthiness directive
58-20-02 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.
Compliance required by January 1, 1959.
In an emergency such as a wheels up landing, the placing of the ground/flight switch on the "Ground" position to minimize fire risk would isolate the fire extinguisher system.
Dove Modification 655 has therefore been introduced which provides an electrical supply to the fire extinguisher circuit from the battery side of the ground/flight switch, even when the switch is in the "Ground" position, thus ensuring that the fire extinguisher system is operative at all times.
The British Air Registration Board considers this mandatory. The FAA concurs with this action and considers compliance therewith mandatory.
(de Havilland TNS CT (104) No. 153 covers the same subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 3
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.