BEFORE STARTING ENGINES
1. Seats, pedals, belts, harnesses - Adjust.
2. Flight controls - Check for free and correct
*3. Parking brake - Check. Confirm that brakes
are set by applying additional toe pressure.
*4. Oxygen system - Check as follows:
a. Oxygen supply pressure gages -Check.
b. Supply control lever (green) -ON.
c. Diluter control lever - 100% OXYGEN.
d. Emergency control lever (red) -Set to
TEST MASK position while holding mask
directly away from face, then return to
e. Oxygen masks - Put on and adjust.
f. Emergency pressure control lever - Set to
TEST MASK position and check mask
for leaks, then return lever to NORMAL.
g. Flow indicator - Check (during inhalation
blinker appears, during exhalation blinker
disappears). Repeat a minimum of 3
5. Circuit breakers - Check in.
6. Overhead panel - Check.