- 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 | 20 KB | 5f543576…118be47 | FAA DRS (API key needed) |
On this page
The airworthiness directive
56-19-01 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.
Compliance required as indicated below.
A case has occurred in which the mild steel rivet locking the stud, P/N 4CF.607 to the spindle, P/N 4CF.603ND in the aileron differential pulley assembly has sheared, allowing the spindle to unscrew from the stud to such an extent that it, together with the pulley, was on the point of becoming disengaged from the pulley bracket.
To prevent a recurrence of this defect, compliance with Dove Modification No. 765 (installation of a H.T.S. pin for locking stud on aileron differential pulley spindle) is considered mandatory by the British Air Registration Board in which the FAA concurs. Accordingly, unless already accomplished, Modification No. 765 should be embodied on all Dove aircraft as soon as possible, but not later than October 15, 1956.
(Dove Modification 765 is covered in de Havilland Service Technical News Sheet CT (104) No. 114 dated November 1, 1954.)This supersedes AD 55-02-01.
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.