Eurocopter AS 350 83 Flight Manual page 252

COMPLEMENTARY FLIGHT MANUAL
2 ENGINE FUEL SUPPLY SYSTEM
The engine fuel supply system consists of the following:
I
-on the aircraft: a booster pump fitted to the bottom of the fuel tank. ~
-on the engine: .a LP fuel pump,
.a HP fuel pump,
.a fuel filter with bypass.
3 FUEL SYSTEM CONTROLS AND MONITORING
The following cockpit provisions are available to the pilot:
-An emergency throttle control to meter the fuel in the event of a governor
failure.
-A fuel shutoff lever that actuates the shutoff valve in the engine fuel
supply system 1'""'\
-On the VEMD : ,..
.A fuel contents gauge (in %). A yellow line from 0 to 10 % indicates the
last 15 min. of flying time.
.A digital fuel contents gauge calibrated in the chosen units.
A flow4neter indicating the fuel flow in the chosen units and the
remaining flying time.
-A "COMB" (FUEL) warning which lights up when the low level is reached in
the tank.
-A "p COMB" (FUEL P) warning which lights up when the fuel pressure drops
below 500 mb. R
-A "FILT COMB" (FUEL FILT) warning which lights up when the pressure
differential between the fuel filter input and output exceeds 700 mb. R
-An indicator light on the instrument panel to show when the booster pump
is operating.
ITEM DESCRIPTION! ITEM DESCRIPTION ~
1 Booster pump operating 11 Booster pump
indicator 12 Fuel shut-off valve R
2 Booster pump push-button 13 lP fuel pump R
3 Fuel low level warning light 14 Fuel heating R
4 Fuel contents gauge is Filter pre-clogging pressure R
5 Standby engine throttle switch
control 16 Fuel filter R
6 Low pressure warning light 17 Filter bypass valve R
7 Fuel filter pre-clogging 18 Differential pressure switch R
warning light 19 Fuel pressure transducer R
8 Fuel gauge sender unit 20 HP fuel pump R
9 Fuel low level switch 21 Fuel metering unit R
10 Fuel tank bleed .
350 83 7.5
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