| AD Number | 59-12-08 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | de Havilland Aircraft Co., Ltd., The |
| Model(s) | 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 D.H. 104 Dove Series 7A D.H. 104 Dove Series 7AXC D.H. 104 Dove Series 8A D.H. 104 Dove Series 8AXC |
59-12-08 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.
Compliance required not later than July 20, 1959.
A case has been reported where a powerplant fire extinguisher spray pipe P/N 4M-99ND had been installed without having the spray holes drilled in it.
(1) Spray pipe P/N 4M99ND must be inspected to ascertain whether it has the spray holes drilled in it as follows:
(a) Open the engine cowlings and inspect the spray pipe running from the distributor unit round the blower casing.
(b) If the pipe has not had the spray holes drilled in it remove the pipe and replace with a serviceable item; or
(c) The unserviceable pipe may be rendered serviceable by working to the details shown in de Havilland Technical News Sheet CT (104) No. 163.
(2) The above inspection, and replacement or rework action where necessary, must be accomplished on all spare powerplants and spares stock before installation in aircraft.
The British Air RegistrationBoard considers this mandatory.
(de Havilland TNS CT (104) No. 163 covers the same subject.)