S 865-029
(13)
Open this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6A26, XFR RELAY BAT
S 215-118
(14)
Examine the EICAS screens.
(a)
Make sure that data shows on the lower EICAS screen.
(b)
Make sure that data does not show on the upper EICAS screen.
S 865-042
(15)
Close this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6A25, XFR RELAY STBY
S 715-043
(16)
Make sure that data shows on the upper and lower EICAS screens.
S 865-032
(17)
Close this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6A26, XFR RELAY BAT
(18)
Make sure that data shows on the upper and lower EICAS screens.
S 865-035
(19)
Open these circuit breakers:
(a)
P6, Main Power Distribution Panel
1) 6A5, TRU 1
2) 6A14, TRU 2
S 715-034
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747-400 MAINTENANCE MANUAL
3) 6A32, TRU 4
4) 6A25, XFR RELAY STBY
S 715-075
(20)
Examine the EICAS screens.
(a)
Make sure that data shows on the lower EICAS screen.
(b)
Make sure that data does not show on the upper EICAS screen.
S 865-039
(21)
Close this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6J7, MN BAT RELAY CONT
S 715-040
(22)
Make sure that data shows on the upper and lower EICAS screens.
S 865-036
(23)
Close these circuit breakers:
(a)
6A5, TRU 1
(b)
6A14, TRU 2
(c)
6A32, TRU 4
(d)
6A25, XFR RELAY STBY
E.
Do the Operational Test of the APU Static Inverter
S 865-157
(1)
Open this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6J5, APU INV XFR RLY PWR CONT
S 715-045
(2)
Make sure that data shows on the captain's primary flight display (PFD) and navigation display (ND) screens.
S 865-052
(3)
Open this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6A8, APU STBY XFR RELAY
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 715-053
(4)
Make sure that data does not show on the captain's PFD or ND screens.
S 865-054
(5)
Close this circuit breaker:
(a)
P6, Main Power Distribution Panel
1) 6J5, APU INV XFR RLY PWR CONT
S 715-055
(6)
Make sure that data shows on the captain's PFD and ND screens.
S 865-144
(7)
Set the STANDBY POWER switch to BAT.
S 715-057
(8)
Make sure that data shows on the captain's PFD and ND screens.
S 865-058
(9)
Set the STANDBY POWER switch to AUTO.
S 865-151
(10)
Close this circuit breaker:
(a)
P6 Main Power Distribution Panel
1) 6A8, APU STBY XFR RELAY
S 715-060
(11) Make sure that data shows on the upper and lower EICAS screens.
F. Put the Airplane to its Usual Condition
S 865-178
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
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