Lighting Flashcards
What are the nav lights powered by?
DC service bus or DC Bus 1
Where are the beacon lights located?
On top of the vertical stabiliser
Near the centre of the bottom side of the fuselage
Should be on anytime the aircraft is moving
What powers the strobe lights?
Left and tail - ACW bus 1
Right - ACW bus 2
When will the taxi and take off lights extinguish?
At gear retraction
Powered by ACW bus 2
Where are the landing lights?
Forward part of each main landing gear bay fairing
Powered by the respective ACW bus
What are the storm lights?
2 fluorescent lights
6 incandescent lights
Used to provide ultra bright lighting in the event lightning is encountered
How is cabin lighting controlled ?
By the flight attendant panel
What is the MIN CAB LT switch?
Every second overhead light on the right side of the cabin is powered by the main battery
Switch operative only when the aircraft is on battery power only
What are the 2 minute switches?
One at right hand side of rear entrance
One in flight deck bear observers oxygen mask
Will illuminate certain flight deck and cabin lights for two minutes
- one bulb in forward and aft emergency exit light
- light in flight deck near observers mask
Where is emergency lighting?
- emergency flight deck lighting
- exit emergency light
- evacuation path marking
- ceiling emergency light
What is the emergency lighting configuration?
- right dome light
- three lights below the captains glareshiedl
- light in the wet compass
- pedestal light on overhead panel
Dome light and compass light will only be on if the switch is in the ON position
What are the cabin emergency lights?
- emergency evacuation path lighting
- exit, ceiling and exterior emergency lights
What powers the cabin emergency lights?
6 VDC system
Either through the DC stby bus through a voltage divided or by 6 volt integral batteries
Will provide power for emergency lights to illuminate for 10 minutes
Recharged when the DC stby bus is powered
When will the emergency lights illuminate?
System armed when the switch is in the ARM a position
Will illuminate if DC stby bus voltage drops below 18 volts or if both generators are lost
Will extinguish if the DC stby bus voltage is above 20 kt and at least one generator is operating
