What is the oxygen test procedure?
Note the crew oxygen pressure.
-Oxygen mask – Stowed and doors closed
-RESET/TEST switch – Push and hold
-Verify that the yellow cross shows momentarily in the flow indicator.
-EMERGENCY/Test selector – Push and hold
-Continue to hold the RESET/TEST switch down and push the EMERGENCY/Test selector for 5 seconds. Verify that the yellow cross shows continuously in the flow indicator.
-Verify that the crew oxygen pressure does not decrease more than 100 psig.
-Release the RESET/TEST switch and the EMERGENCY/Test selector. Verify that the yellow cross does not show in the flow indicator.
-Normal/100% switch – 100%
-Crew oxygen pressure - Check.
-Verify that the pressure is sufficient for dispatch.