Lighting Flashcards
During an emergency evacuation or ditching after dark, how are the external emergency exit lights turned On?
By selecting the ON with the emergency battery switch
What will cause the cats eyes indicator to show white over black in the navigation/strobe light area?
If one or both of the strobe light bulbs should fail
Why are the NAV lights powered by two different power sources and what are they?
If the aircraft has to be towed at night, the NAV lights can be turned on with battery power without having to start the APU
NAV LTS #1 = LEFT MAIN DC BUS and NAV LTS #2 = LEFT ESS DC BUS
If the landing light switches are left on during flight, when will the lights turn off automatically?
Passing through 18000 ft ( or they’ll change to pulse mode if the pulse light switch is selected)
Will the taxi lights turn off automatically, if so, when?
Upon gear retraction
The nose landing gear must be extended and locked for the lights to operate
How many emergency lighting battery packs (ELPBPS) are installed?
Two
Forward and aft rechargeable lead-acid batteries
What are the power sources for the navigation lights?
NAV LTS #1 - Left main DC Bus
NAV LTS #2- Left ESS DC Bus
If the aircraft is to be towed at night, the NAV lights can be turned ON using battery power without having to start the APU
How are the wheel well lights activated?
By using the WHL WELL control switch on the EXTERIOR LTS panel.
How are the landing lights de-iced?
Warm bleed air is routed through perforated tubes in the lens housing
If the airplane is being taxied at night, how is the adjoining taxiway lit when making a sharp turn?
The taxi lights are located on the steerable part of the nose strut.
Other than the anti-collision (beacon) light switch itself, what else would cause the beacon light to illuminate?
Selecting the Ground Service Bus switch ON
