1. ELECTRICAL (CONT'D)
H. APU Generator Failure
Indication: APU GEN OFF caution message on.
(1) AC POWER, APU GEN switch.............................Select to OFF/RESET then ON.
APU GEN OFF caution message persists:
Yes
(2) AC POWER, APU GEN
switch............................................................Select to OFF.
(3) Affected airplane systems .......................... Review
− END −
No
(2) AC ELECTRICAL page ......................................Monitor loads on APU generator.
END
I. APU Generator Overload
Indication: APU GEN OVLD caution message on. AC ELECTRICAL page – APU
generator load readout is greater than 35 KVA.
(1) AC ELECTRICAL page ......................................Monitor load on APU generator.
(2) AC loads............................................................ Reduce as necessary.
END
J. Battery Bus Failure
Indication: BATTERY BUS caution message on.
(1) Land at the nearest suitable airport.
(2) Affected airplane systems .................................. Review
END
ABNORMAL PROCEDURES
Electrical
05−09−4
REV 71, Oct 31/07
DOT Approved
CL−604 Airplane Flight Manual
PSP 604−1
1. ELECTRICAL (CONT'D)
K. DC BUS 1 Failure
Indication: DC BUS 1 caution message on. DC ELECTRICAL page – DC BUS 1
inoperative.
(1) DC POWER, MAIN BUS TIE
switch/light .........................................................Press in to close bus tie manually.
Check MAIN BUS TIE
CLOSED light on.
DC BUS 1 caution message persists:
Yes
(2) Affected airplane systems .......................... Review
− END −
No
(2) No further action required.
END
L. DC BUS 2 Failure
Indication: DC BUS 2 caution message on. DC ELECTRICAL page – DC BUS 2
inoperative.
(1) DC POWER, MAIN BUS TIE
switch/light .........................................................Press in to close bus tie manually.
Check MAIN BUS TIE
CLOSED light on.
DC BUS 2 caution message persists:
Yes
(2) Affected airplane systems .......................... Review
− END −
No
(2) No further action required.
END
M. DC Essential Bus Failure
Indication: DC ESS BUS caution message on. DC ELECTRICAL page − DC ESS BUS
inoperative.
(1) Land at the nearest suitable airport.
(2) Affected airplane systems .................................. Review
END
ABNORMAL PROCEDURES
Electrical
05−09−5
REV 66, Feb 01/07
DOT Approved
CL−604 Airplane Flight Manual
PSP 604−1
1. ELECTRICAL (CONT'D)
N. AC Generator 1 Failure
Indication: GEN 1 OFF caution message on.
(1) AC POWER, GEN 1 switch ..................................Select to OFF/RESET then ON.
GEN 1 OFF caution message persists:
Yes
(2) AC POWER, GEN 1 switch ..........................Select to OFF.
NOTE
1. With generator 1 shutdown, HYD PUMP 2B is load
shed.
2. During single generator operations, AC utility busses
are shed, unless on ground with flaps at 0°.
(3) APU (if available)............................................ Start when at or below 20,000 feet.
On airplanes 5301 to 5630 NOT incorporating Service Bulletin 604–49–006 or
604–49–009:
(3) APU (if available)............................................ Start when at or below 15,000 feet.
On airplanes 5301 to 5630 NOT incorporating Service Bulletin 604–49–006 or
604–49–009:
CAUTION
Use of the APU generator in flight is not permitted unless
both main generators have failed or are off-line.
(4) AC POWER, APU GEN
switch............................................................Select to ON.
− END −
No
(2) AC ELECTRICAL page ......................................Monitor voltage, load and frequency
readouts on all generators.
END
ABNORMAL PROCEDURES
Electrical
05−09−6
REV 71, Oct 31/07
DOT Approved
CL−604 Airplane Flight Manual
PSP 604−1
1. ELECTRICAL (CONT'D)
O. AC Generator 2 Failure
Indication: GEN 2 OFF caution message on.
(1) AC POWER, GEN 2 switch ..................................Select to OFF/RESET then ON.
GEN 2 OFF caution message persists:
Yes
(2) AC POWER, GEN 2 switch ..........................Select to OFF.
NOTE
1. With generator 2 shutdown, HYD PUMP 1B is load
shed.
2. During single generator operations, AC utility busses
are shed, unless on ground with flaps at 0°.
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