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Non-Normal Checklists -
Electrical
Table of Contents
Copyright © The Boeing Company. See title page for details.
6.TOC.2 D632W001-TBC
Intentionally
Blank
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 6.1
6.1
NNC.6 Non-Normal Checklists-Electrical
2 Choose one:
3 Choose one:
􀀙 Continued on next page 􀀙
ELEC AC BUS L, R
Condition: The AC bus is not energized.
Objective: To attempt to restore power or attempt to
use the APU to provide an additional source
of power.
Attempt only one reset.
1 GEN CTRL switch. . . . . . . . . . . . . Off, then ON
ELEC AC BUS message blanks:
􀂠􀂠􀂠􀂠
ELEC AC BUS message stays shown:
APU selector
(if APU available) . . . . . . . START, then ON
Do not accomplish the following checklist:
ELEC GEN OFF
When the APU is running:
􀁦􀁦Go to step 3
ELEC AC BUS message blanks:
􀂠􀂠􀂠􀂠
ELEC AC BUS message stays shown:
􀁦􀁦Go to step 4
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
6.2
6.2
5 Choose one:
􀂠􀂠􀂠􀂠
􀀙ELEC AC BUS L, R continued􀀙
Attempt only one reset.
4 BUS TIE switch . . . . . . . . . . . . Off, then AUTO
ELEC AC BUS message blanks:
􀂠􀂠􀂠􀂠
ELEC AC BUS message stays shown:
Do not accomplish the following checklists:
WINDOW HEAT
HYD PRESS PRI
􀂠􀂠􀂠􀂠
[] ELEC BACKUP GEN L, R
Condition: The backup generator is failed.
Attempt only one reset.
1 BACKUP GEN switch. . . . . . . . . . . Off, then ON
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 6.3
6.3
􀂠􀂠􀂠􀂠
􀂠􀂠􀂠􀂠
􀂠􀂠􀂠􀂠
􀂠􀂠􀂠􀂠
[] ELEC BACKUP SYS
Condition: The backup power system is failed.
Attempt only one reset.
1 L BACKUP GEN switch . . . . . . . . . Off, then ON
Attempt only one reset.
2 R BACKUP GEN switch . . . . . . . . . Off, then ON
ELEC BATTERY OFF
Condition: The battery switch is OFF.
ELEC BUS ISLN L, R
Condition: The bus tie breaker is open.
ELEC CABIN/UTIL OFF
Condition: The CABIN/UTILITY power switch is OFF.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
6.4
6.4
2 APU selector
(if APU available) . . . . . . . . . . . . START, then ON
3 Do not accomplish the following checklist:
ELEC GEN OFF
􀂠􀂠􀂠􀂠
􀂠􀂠􀂠􀂠
[] ELEC GEN DRIVE L, R
Condition: A generator drive malfunction occurs.
Objective: To prevent generator drive damage and use
the APU to provide an additional source of
power.
Action is irreversible.
1 DRIVE DISC
switch . . . . . .Confirm . . . . . . . . . . Push and
hold for 1 second
[] ELEC GEN OFF APU
Condition: The generator control breaker is open.
Attempt only one reset.
1 APU GEN switch. . . . . . . . . . . . . . Off, then ON
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 6.5
6.5
2 Choose one:
􀂠􀂠􀂠􀂠
􀂠􀂠􀂠􀂠
[] ELEC GEN OFF L, R
Condition: The generator control breaker is open.
Objective: To attempt to reset the generator or
attempt to use the APU to provide an
additional source of power.
Attempt only one reset.
1 GEN CTRL switch. . . . . . . . . . . . . Off, then ON
ELEC GEN OFF message blanks:
􀂠􀂠􀂠􀂠
ELEC GEN OFF message stays shown:
APU selector
(if APU available) . . . . . . . START, then ON
􀂠􀂠􀂠􀂠
ELEC GND HDLG BUS
Condition: A fault occurs in the ground handling bus.
ELEC IFE/SEATS OFF
Condition: The IFE/PASS SEATS power switch is OFF.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
　
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