B737 Oxygen Panel
Flight CREW OXYGEN Pressure Indicator
- Indicates pressure at the crew oxygen cylinder.
Passenger Oxygen (PASS OXYGEN) Switch
- NORMAL (guarded position): Passenger masks drop, and passenger oxygen system is activated automatically if cabin altitude climbs to 14,000 feet.
- ON: Activates the system and drops masks if the automatic function fails.
Passenger Oxygen On Light
- Illuminated (amber): Passenger oxygen system is operating, and masks have dropped.