PASSENGER OXYGEN

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MASK DEPLOY SELECTOR KNOB

OFF: Disables automatic deployment of passenger oxygen masks.

AUTO: Automatically deployed when the cabin altitude is between 14.000ft to 14.750ft.

OVRD: Deploys the passenger oxygen masks regardless of cabin altitude.

MASKS DEPLOYED LIGHT

An ON light illuminates, indicating that the passenger and flight attendant oxygen masks have been deployed.

When the passenger masks doors are commanded open the FASTEN SEAT BELT and the NO SMOKING signs turn on regardless of the switch position.