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REVISION 7 ABNORMAL / EMERGENCY PROCEDURES
May 30/02 Page EA - 21
Essential DC Bus On Battery Power, ctd… AFM 3-07-90
2. If EPMP switch selection is correct, check Battery Ammeters for
discharge.
If Battery Ammeters indicate that batteries are discharging:
A. Load shed as necessary (one or both main boost pumps may
be sufficient).
CAUTION: DO NOT ATTEMPT TO START THE APU OR USE
THE AUX HYDRAULIC PUMP.
OR:
B. Power Source For ESS DC Bus...................... SELECT BATT
C. L / R MAIN DC SENSE CBs (P: H-14, I-14)....................PULL
D. Standby Electrical Power Switch........................................ON
E. Standby Electrical Power TRU Switch ...............................ON
F. Monitor Battery Ammeters. Load shed if required.
NOTE: Steps 2B thru 2F cause DU 2 to be unpowered, DU 6 to
RED X and copilot’s PFD to auto-transfer to DU 5 (SPZ 8400 only).
Selecting NORM-ALT-ALT on SG reversionary panel will restore
the co-pilot’s displays to normal. DU 2 will remain unpowered.
G. Maintain minimum of 67% HP RPM while in this configuration.
H. For Approach and Landing:
NOTE: The crew may elect to land with "batteries only" powering
the essential bus provided there is power to the main buses from
the converters. Load shedding of the MAIN boost pumps and
opening the cross flow valve prior to landing should be sufficient to
preserve batteries.
1) Gear Handle ............................................................DOWN
2) Flaps .................................................. SET FOR LANDING
3) Emergency Batteries .....................................................ON
4) Ground Spoilers...........................................................OFF
5) Maintain 67% HP RPM until touchdown.
NOTE: Once the airplane is on the ground, there is no need to
continue to maintain 67% HP RPM. The Standby Electrical
System will stay on line during normal taxi maneuvers. If
Standby Electrical Power is interrupted, cycle the Standby
Electrical Power Switch OFF then ON to regain power.
Continued on next page →
Quick Reference Handbook
ABNORMAL / EMERGENCY PROCEDURES REVISION 7
Page EA - 22 May 30/02
Essential DC Bus On Battery Power, ctd… AFM 3-07-90
6) DO NOT use Reverse Thrust.
7) On touchdown, manually deploy the flight spoilers at a
slow rate (approximately 5 seconds).
8) Use normal braking to stop airplane.
Master Table Of Electrical Component Availability GAC
AC BUSSES DC BUSSES
COMPONENT L MN
AC BUS
R MN
AC BUS
ESS AC
BUS
L MN
DC
BUS
R MN
DC
BUS
ESS DC
BUS
BATT
BUS
#1,
#2
ADF #2 NO
1000-
1017.
OK
1018 &
SUB.
#1 NO
1000-
1017.
OK
1018 &
SUB.
AHRS OK IF L
MAIN
DC OK
OK IF L
MAIN
AC OK
AIR START
IGNITION
NO
AOA HEAT #2 NO #1 NO
AOA STALL
BARRIER
#2 NO #1 NO
APU ENG NO
START
NO
START
AUX HYD
PUMP
NO NO
BATT CHGRS #1 NO #2 NO NO
BOOST
PUMPS
NO
ALTNS
NO
MAINS
CDU #2 NO #1 NO
COWL-WING
ANTI-ICE
NO
CPT/CABIN
TEMP CONT
*FULL
COLD
NO
DADC #2 NO #1 NO
DAU #1B NO #2A NO #1A NO,
#2B NO
DDRMI 1
(DBDI)
#1, #2
OK IF
EBATTS
ON
*SNs 1120 and Subsequent or ASC 170 - CPT/CAB TEMP CONT is normal.
Continued on next page →
Quick Reference Handbook
REVISION 7 ABNORMAL / EMERGENCY PROCEDURES
May 30/02 Page EA - 23
Master Table Of Electrical Component Availability, ctd… GAC
AC BUSSES DC BUSSES
COMPONENT L MN
AC BUS
R MN
AC BUS
ESS AC
BUS
L MN
DC
BUS
R MN
DC
BUS
ESS DC
BUS
BATT
BUS
#1,
#2
DISP. CONT. #2 NO #1 NO
DME #2 NO #1 NO
DU #5 NO #2, #4,
#6 NO
#1, #3
NO
E INVERTER OK IF
SEPS
IS ON
ECS
PACKS
UNABLE
TO
CLOSE
ENG IDLE LEFT =
67%
MIN
RIGHT
= 67%
MIN
ENGINE
INSTRUMENTS
NO
EPR
STBY
OK IF
EBATTS
ON
FGC
SPZ 8000
#2 NO #1 NO
FGC
SPZ 8400
#1 & #2
NO
FIRE DET
PROT
NO
FLAPS NO
FLIGHT
GUIDANCE
PANEL
OK IF R
MAIN
DC OK
OK IF L
MAIN
DC OK
FWC #2 NO #1 NO
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