CS-E 260 Engine Cooling System

(a)The design and construction of the Engine cooling system must ensure adequate cooling in all normal operating conditions within the flight envelope. Any reliance upon assumed installed conditions shall be declared in the instructions for installation.

(b)For liquid-cooled Engines, it must be shown that the coolant will not boil under any normal operating condition within the flight envelope, under all additive concentrations approved for use.

(c)For liquid-cooled Engines, to prevent Engine malfunction due to overheating, appropriate means or provision for means shall be provided to detect loss of coolant.