Check that oxygen quantity is sufficient for the entire mis-
sion, that crew masks operate normally, and that the diluter
selector is set at 100%.
OXYGEN SUPPLY PRESSURE gages
SUPPLY control lever (green) ON.
Diluter control lever 100% OXYGEN.
EMERGENCY control lever (red) Set to
TEST MASK position while holding mask di-
rectly away from face, then return to NOR-
Oxygen mask Put on and adjust.
EMERGENCY pressure control lever Set
to TEST MASK position and check mask for
leaks, then return lever to NORMAL.
FLOW indicator Check. During inhalation
blinker appears, during exhalation blinker
disappears. Repeat a minimum of 3 times.
Oxygen masks Remove and store.
FUEL PUMPS/CROSSFEED OPERATION
FIRE PULL handles Pull.
STANDBY PUMP switches On.
BATTERY switch ON.
#1 and #2 FUEL PRESS warning annuncia-