EMERGENCY EQUIPMENT
Emergency Lighting
Aircraft Operations Manual
6/3.1
PAGE
1
Apr 01/15
1.
GENERAL
The emergency lighting system provides necessary
interior and exterior lighting for a minimum of ten
minutes. The lights are powered by rechargeable
battery packs, located under the cabin floor.
1.1
Interior emergency lights
−
cove mounted lights (10)
−
emergency exit signs (4)
−
emergency exit locator signs (2)
−
floor proximity escape path lights (8) or (20)
1.2
Exterior emergency lights
−
escape path lights (2)
−
escape path lights in the frames of main door and
forward right exit. (2)
−
escape path lights, integrated with forward right
and L/R overwing emergency exit signs (3).
2.
MAIN COMPONENTS AND SUBSYSTEMS
The emergency lighting system is divided into five
subsystems, each feeding the bulbs in a concen-
trated part of the cabin from its battery pack, there-
by maximizing systems survivability.
The battery packs are kept at full charge via the R
ESS BUS.
The emergency lights are manually controlled by a
cockpit (OFF
−
ARMED
−
ON) EMER LIGHT switch
and an EMERGENCY LIGHTS button on the F/A
service panel (F/A
−
button).
The emergency lights will come on;
−
Manually, by selecting cockpit switch to ON or
pushing F/A button to ON, provided any Battery
Switch is in ON position or R ESS BUS is pow-
ered.
The F/A
−
button will activate the system also
when the cockpit switch is in OFF position.
−
Automatically, if electrical power is lost on R
MAIN START BUS (R MAIN BUS for A/C up to
s/n 358), provided the system is armed, which is
achieved with the cockpit switch in ARMED posi-
tion.
The emergency lights will go out;
−
Automatically, if activated automatically, provided
electrical power is restored on R MAIN BUS and
F/A
−
button is not pushed to ON or cockpit switch
is not in ON position.
−
Manually, by selecting the cockpit switch to OFF
position, provided any Battery switch is in ON
position and the F/A
−
button is not pushed to ON
position.
If the lights come on manually or automatically they
can not be selected off;
−
if CB S7 (R ESS, R MAIN) is tripped or
−
if R ESS BUS power is lost.
NOTE
The F/A
−
button will illuminate to show ARMED or
ON depending on system status.
Crew members should receive adequate training
in the handling of the emergency lighting system.
CAUTION
Cockpit EMERG LIGHT switch should be OFF dur-
ing engine start, be set to ARMED after engine
start, and be set to OFF prior to engine shut
−
down.
(The emergency lights can be turned off only when
R ESS BUS is powered.)