§29.1019 Oil strainer or filter

(a) Each tu rbine en gine in stallation must incorporate an oil strainer or filter through which all of t he engi ne oi l fl ows and whi ch meets the following requirements: (1) Each o il strain er o r filter that has a bypass must be constructed and installed so that oil will flow at the norm al rate through the rest of th e system with th e strain er o r filter completely blocked. (2) The o il strain er o r filter must have the capacity (with resp ect to o perating limitations established for the engine) to ensure that engi ne oi l sy stem functioning is not impaired wh en th e o il is co ntaminated to a degree (with resp ect to p article size an d density) that is g reater than that established for the engine under CS–E. (3) The oil strainer or filter, u nless it is installed at an o il tan k o utlet, must in corporate a m eans to indicate contam ination before it reaches the capacity es tablished in accordance with subparagraph (a) (2) . (4) The b ypass o f a strain er o r filter must be constructed and i nstalled so t hat t he release of collected contam inants is m inimised by appropriate location of t he bypass to ensure that collected contam inants are not in the bypass flow path. (5) An o il strain er o r filter th at h as n o bypass, except one that is in stalled at an o il tank outlet, must have a means to co nnect it to the warning system required in CS 29.1305 (a) (18). (b) Each o il strain er o r filter in a p owerplant installation usi ng reci procating engi nes must be constructed and installed so th at o il will flo w at the normal rate through the rest of the system with the strainer or filter element completely blocked.