B737 NG Systems Review
Display Selector
Oxygen Panel
Passenger Oxygen (PASS OXYGEN) Switch

NORMAL – (guarded position) passenger masks drop and
passenger oxygen system is automatically activated if the cabin
altitude climbs to 14,000 feet.

Option - 14,650 with High Altitude Landing Switch

ON – Activates the system and drops masks if the automatic
function fails.
PASS OXY
ON
Passenger Oxygen On Light

Illuminated – Passenger oxygen system is operating and the
masks have dropped.
Aft Overhead Panel  700/800/900