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System Description
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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

This page includes :

CAS Messages

For AOG assistance contact:

CRC Montreal (YUL)
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Overview

The oxygen system supplies oxygen to the crew and passengers in case of cabin depressurization, smoke/ fire contamination, or other emergency. Oxygen is also available for therapeutic purposes.

The oxygen system is of the gaseous type. The basic system comprises a 77 cu. ft. oxygen cylinder. As an option, a 115 cu. ft. cylinder may be added for extended flights.

The electro pneumatic actuating valve (EPAV) controls the oxygen system. It supplies oxygen to the crew mask regulators, passenger drop-out boxes, and therapeutic masks.

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