ELECTRICAL
Volume 2
Flight Crew Operating Manual
Sep 14/2005
07-01-18
CSP 100-6
REV 4
EICAS MESSAGES
The electrical system messages are shown on the EICAS. In the table below is a list of the electrical system messages,
inhibits, and aural warnings. A brief explanation of each message is provided.
MESSAGE
INHIBITS
MEANING
AURAL
WARNING
L (R)
BATT OVERHEAT
TO/LAND
Respective battery internal temperature
exceeded 70
°
C
ESSENTIAL POWER
ONLY
The essential buses are powered by the batter-
ies only. AUX and MAIN buses are automati-
cally deactivated in flight
APU GEN FAIL
TO/LAND
The APU generator failed
APU GEN OVERLOAD
TO/LAND
The APU generator has exceeded 500 amp
L (R) BATT FAIL
TO/LAND
Either the respective battery contactor failed or
the battery has been automatically discon-
nected for overheat protection
ELEC HYD GEN FAIL
TO/LAND
The hydraulic generator has failed to come on-
line
ELECTRICAL FAULT
TO/LAND
An electrical system failure has occurred that
prevents display of electrical indications
L (R) GEN FAIL
TO/LAND
The affected generator has failed. If the APU
generators not on line, the BUS-TIE will auto-
matically close and, in-flight, the auxiliary buses
will not be powered
L (R) ESS BUS FAIL
TO/LAND
Affected bus is not powered
L (R)
GEN OVERLOAD
TO/LAND
Respective generator load exceeded 500 amp
L (R) MAIN BUS FAIL
TO/LAND
The affected MAIN bus is not powered
L (R) AUX BUS FAIL
TO/LAND
The affected auxiliary BUS is not powered with
a power source available
L (R) AUX BUS OFF
TO/LAND
Respective AUX BUS is selected off
ELECTRICAL FAULT
TO/LAND
An electrical system fault occurred, resulting in
loss of redundancy in the display of electrical
indications
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Summary of Contents for Challenger 300
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