- Effective
- February 5, 1966
- Published
- January 6, 1966
- 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
- Amendment
- 39-177
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.
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On this page
The airworthiness directive
66-02-03 de HAVILLAND: Amdt. 39-177, Part 39, Federal Register January 6, 1966. Applies to All Model 104 Dove Airplanes with Serial Numbers through 04504.
Compliance required as indicated.
To prevent further cracking of pistons P/N AHO.19742, installed in Dunlop pneumatic retraction jacks (cylinders) P/N AH.8463 and P/N AC.11130, fitted to the main and nose landing gear assemblies accomplish the following:
(a) Unless already accomplished, replace piston P/N AHO.19742 in the pneumatic retraction jacks P/N AH.8463 and P/N AC.11130 on all airplanes that have accumulated 10,000 hours' time in service and thereafter at intervals not to exceed 10,000 hours' time in service.
(b) Replacement of the pistons required in (a) may be discontinued after installation of de Havilland Modification No. 1144 which provides jacks with pistons that have an increased service life.
(de Havilland Service Technical News Sheet TMS Series C.T. (104 Issue 2 dated July 11, 1960, covers this subject.)
This supersedes AD 57-20-02. This directive effective February 5, 1966.
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.