INTERIOR CHECK (CONT)
Crew briefing As required
BEFORE STARTING ENGINES
Seats, pedals, belts, harnesses Adjust
Flight controls Check for free and correct movements.
Parking brake Check Confirm that brakes are set by applying
additional toe pressure.
Oxygen system Check as follows:
Oxygen supply pressure gages Check.
Supply control lever (green) ON.
Diluter control lever 100% OXYGEN.
Emergency control lever (red) Set to TEST MASK
position while holding mask directly away from face, then
return to NORMAL
Oxygen masks Put on and adjust
Emergency pressure control lever Set to TEST MASK
position and check mask for leaks, then return lever to
Flow indicator Check, during inhalation blinker appears,
minimum of 3 times.