Airplane General - Emergency Lighting

The passenger cabin interior and exterior lights are powered by the emergency lighting system. These lights provide illumination for evacuating the airplane.

Emergency lighting is controlled by the Emergency Lights Switch on the overhead panel. The switch can be used to manually activate or arm the system for automatic operation.

Flight Deck Emergency Lights Switch

Flight Deck Emergency Lights Switch

When the system is ARMED, automatic operation occurs if:

Passenger Cabin Emergency Lights Switch

The Emergency Lighting system can also be controlled by the Flight Attendants Emergency Lights Switch.

The Emergency Lighting system is powered by remote batteries. Battery charge is maintained by the airplane electrical system. A fully charged battery provides at least 15 minutes of operation.

Unarmed

The UNARMED light illuminates and the EICAS advisory message EMER LIGHTS is displayed if:


Interior Emergency Lighting

Interior Emergency Lighting consists of door, aisle, escape path, exit lights and luminescent exit signs.

Escape Path lighting consists of floor / seat mounted locator lights spaced at intervals in the aisle and exit indicators by each door. When illuminated, escape path lighting provides visual guidance for emergency evacuation if all sources of lighting more than four feet above the aisle floor are obscured by smoke.

Battery powered exit lights are located at each cabin exit.

Photolum Emergency Lights

A photoluminescent floor path marking system is installed along the cabin aisle. The photoluminescent material, when excited by light, will glow and provide exit path guidance. At the exit, electrically operated lights and markers provide exit identification.

The photoluminescent strips need to be properly charged. The table below contains charging information and can be used to determine how long the strips remain illuminated. For charging, the cabin ceiling, and sidewall lights need to be on at full intensity, and the strips should not be covered or blocked.

Exterior Emergency Lighting

Exterior Emergency lights are located at each entry door and emergency door. Lights are also installed in each slide to illuminate the ground at the end of the slide.

Exterior Emergency lights are located at each entry door and overwing emergency exit door. Lights are also installed in each slide to illuminate the ground at the end of the slide.

Doors and Windows