Oxygen Panel

Question 1

What does the illumination of the SYS ON light mean? Does this mean that all the masks have deployed?

Answer 1

The signal has been sent to release the oxygen mask doors, but some masks may have to be deployed manually

Question 2

What causes automatic deployment of the masks?

Answer 2

Cabin altitude reaching approximately 14,000’

Question 3

How does the passenger oxygen system work?

Answer 3

Chemical oxygen generators for approximately 13 to 15 minutes

Question 4

What happens when a pilot pushes the CREW SUPPLY PUSHBUTTON?

Answer 4

Valve opens to supply low pressure oxygen to the crew

Question 5

What indication would a pilot have of crew oxygen cylinder thermal discharge?

Answer 5

The green disk on the lower left side of the forward fuselage would be missing

Question 6

How is the crew oxygen mask microphone deactivated when the mask is stowed?

Answer 6

The RESET control slide will accomplish this- it does not happen automatically