“T” below the outboard display unit is visible.
Sight along the upper surface of the glareshield with a small amount of the airplane nose structure visible.
An unobstructed view of the displays presented on the bottom of the CDS display.
All of the above.
OFF position prevents emergency light system operation if airplane electrical power fails or is turned off.
Armed position illuminates all emergency lights if AC bus NO. 1 fails.
ON position illuminates only emergency lights in cockpit.
ON position illuminates only flight deck emergency lights.
Release the masks from their stowage boxes.
Activate oxygen and microphone when the stowage box door closes.
Inflate the mask harness when the left lever is squeezed.
Activate oxygen flow momentarily to test regulator.
From an exterior panel of the aft right side of the airplane.
Requires DC power.
Gravity feed from external sources.
From an exterior panel of the aft left side of the airplane.
At the oxygen cylinder.
At the flight crew oxygen shutoff valve.
On the flight crew oxygen pressure indicator on the aft overhead panel.
Behind the Captain’s seat on the P-l8 panel.
Passenger oxygen system pressure is low.
Passenger oxygen quantity is low.
Passenger oxygen system is activated.
OVERHEAD annunciator extinguishes on the Master Caution system.
On the lower inboard corner of the stowage bins.
Over the entry/ service and overwing emergency hatches.
In the ceiling.
All of the above.
Activates the emergency light system with APU generator power only.
Illuminates all emergency lights, all the time.
Illuminates all interior and exterior emergency lights if there is a loss of electrical power on DC bus No. 1, or if AC power has been turned off.
Can be reset by going from ON to armed.
Supplies 100% oxygen under positive pressure at all cabin altitudes.
Test positive pressure supply to the regulator.
Provides a mixture of ambient air with oxygen on demand.
Supplies 100% oxygen only at high altitudes.