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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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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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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 ELECTRICAL POWER 電源 2(31)