CS 22.977  Fuel strainer or filter

CAA ORS9 Decision No. 1

(a) There must be a fuel filter between the fuel tank outlet and the carburettor inlet (or an engine driven fuel pump, if any). 

(b) There must be a finger strainer with 3 to 6 meshes per cm at the outlet of each fuel tank. The length of each strainer must be at least twice the diameter of the fuel tank outlet. 

(c) Each filter or strainer must be easily accessible for drainage and cleaning.