Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-122
26-Jul-2017
FUEL SYSTEM
Two fuel pumps plus a boost pump per engine supply the engines with fuel. Fuel flow to the engine may be cut
by closing the shutoff valve or pushing the FIRE PUSH switch.
The amount of fuel injected into the combustion chamber is controlled by the FADEC. The FADEC calculates
the amount. Furthermore, fuel is used for cooling the oil in the lubrication system.