Originally Posted by
Ripton
This raises the question of whether the strip lighting on the aisle floor designed to guide passengers to the exit would only come on in an emergency to guide passengers to emergency exits that had been opened or whether it all comes on together regardless that it might guide you in the wrong direction? Not something I've ever considered as a passenger before.
it's generally all on if selected on by FC.
if it's not already on, it comes on due main power failure or selection by CC if thst option exists on the aircraft.
I can't speak for the SU100, but on most modern aircraft external EEL activates on opening of the armed cabin door (slide exit area lighting and fuselage moubted spotlights etc) and slide deployment will trigger integral slide lights (if fitted). This seems to be the norm in widebody dual lane slides like 777 or A380, less so on single aisles but I haven't operated in a 737 or A320 in years so perhaps they now have integrated slide lights too