Login
Register
Lighting
Three types: cabin lights, flight compartment lights, and external lights. If power is lost, temporary DC power is provided for emergency exit lighting.
The external lights system consists of:
- landing lights (3)
- taxi lights (3) - nose gear taxi light extinguishes if nose gear is not down and locked
- navigation lights (3 in each wing, including a standby light activated by a separate power source)
- inspection lights
- logo lights (2)
- anticollision lights (4 strobes, 2 red beacons)
- 3 emergency exit lights at overwing emergency exit
The flight compartment lighting consists of:
- cockpit lighting (dome lights powered by DC ESS Bus 3, reading lights, chart lights)
- instrument and control panel lighting
- flood storm lights
The passenger compartment lighting system consists of:
- passenger cabin lights (controlled using forward and aft attendants panels)
- passenger warning sign system (no smoking and fasten seat belts signs automatically illuminate when the cabin altitude exceeds 14,000')
- reading and attendant call light system
- courtesy light system (ceiling lights are DC - powered by the hot battery bus if normal power is not available on a 5 minute cycle)
- lavatory light system
- galley light system
- entrance light system
Cargo compartment lights are activated when the cargo doors are opened.
The emergency lighting system is powered by 6 ELPUs. The floor proximity emergency escape path markings are photo-luminescent.