Super 80 Professional – AOM
ELECTRICAL
Section 11 Page 7
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
WARNING AND CAUTION INDICATORS
APU GEN OFF LIGHT (Digital display)
Comes on to indicate APU is operating but
APU generator is not in use. MASTER
CAUTION lights also come on.
AC BUS OFF LIGHT (L, R) (Digital display)
Comes on to indicate generator bus is not
powered. MASTER CAUTION lights also come
on.
GEN OFF LIGHT (L, R) (Digital display)
Comes on to indicate generator relay is
open, disconnecting generator from its bus.
MASTER CAUTION lights also come on.
CSD OIL PRESS LOW LIGHT (L, R). (Digital
display)
Comes on to indicate oil pressure in CSD is
below operating limits. MASTER CAUTION
lights also come on.
AC CROSSTIE LOCKOUT LIGHT (Digital
display)
Comes on to indicate AC crosstie relay is
locked open and automatic AC crosstie is
inoperative. MASTER CAUTION lights also
come on.
BATTERY OFF LIGHT (Digital display)
Amber light that comes on when Battery
switch is in the OFF position.
DC TRANSFER BUS OFF LIGHT (Digital display)
Not in use.
DC BUS OFF LIGHT (Digital display)
Comes on to indicate either left or right DC
bus is not powered. MASTER CAUTION lights
also come on.
7. AC EMER BUS OFF LIGHT (Red)
Comes on to indicate emergency AC bus
is not powered. MASTER WARNING lights
also come on.
18. DC EMER BUS OFF LIGHT (Red)
Comes on to indicate emergency DC bus
is not powered. MASTER WARNING lights
also come on.
