59-12-08: Fire Extinguisher Spray Pipe
FAA order 59-12-08 is an airworthiness directive. The FAA's subject line: Fire Extinguisher Spray Pipe. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- de Havilland Aircraft Co., Ltd., The
- 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, D.H. 104 Dove Series 7A, D.H. 104 Dove Series 7AXC, D.H. 104 Dove Series 8A, D.H. 104 Dove Series 8AXC
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (1,075 characters)
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.)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/59-12-08.json · aircraft systems.