Airplane General - Emergency Evacuation

The emergency evacuation signal system alerts the flight attendants to evacuate the passenger cabin. Evacuation command switches are located on the flight deck and at selected flight attendant panels. Each panel has a Command Switch, an EVAC (Evacuation) light, a horn and a Horn Shutoff switch. Positioning the flight deck Command switch, or a Flight attendant’ Command switch on when the flight deck switch is in the guarded position, causes the EVAC lights to illuminate and the horns to sound at all locations.

• COMMAND Switch. Activates the evacuation light and audio signal on all evacuation signal panels.
• EVAC light. Flashes to indicate activation of the evacuation signal system
• HORN SHUT OFF Switch. Silences the evacuation audio signal at the individual panel.