-Go to the PRESENT LEG FAULTS in the CMC with the MCDU
-Find the message to be removed
-Push the MCDU button next to the select erase prompt
-If the fault is not present the message will not show on the EICAS status page and the erase prompt will not show on the Present leg faults page.
S 865-020
(11)
Open this circuit breaker:
(a)
On the P6 panel:
1) 6G1, FUEL SHUTOFF VALVE ENG 1
S 725-021
(12)
Make sure that the EICAS advisory message "ENG 1 FUEL VLV" shows on the top EICAS display.
S 725-051
(13)
Make sure the EICAS status message "FUEL SPAR VLV 1" shows on the bottom EICAS display.
S 865-022
(14)
Close this circuit breaker:
(a)
On the P6 panel:
1) 6G1, FUEL SHUTOFF VALVE ENG 1
S 725-023
(15)
Make sure the EICAS advisory message "ENG 1 FUEL VLV" does not show on the top EICAS display.
S 725-065
(16)
Make sure the EICAS status message "FUEL SPAR VLV 1" does not show on the bottom EICAS display.
S 865-024
(17)
Open this circuit breaker:
(a)
On the P6 panel:
1) 6L14, FUEL XFEED VALVE ENG 1
S 725-025
(18) Make sure the EICAS message "FUEL XFEED 1" shows on the top EICAS display.
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A
747-400
MAINTENANCE MANUAL
S 865-026
(19)
Close this circuit breaker:
(a)
On the P6 panel:
1) 6L14, FUEL XFEED VALVE ENG 1
S 725-027
(20)
Make sure the EICAS message "FUEL XFEED 1" does not show on the top EICAS display.
S 865-075
(21)
Open this circuit breaker:
(a)
On the overhead circuit breaker panel P7: 1) 7H22, FUEL XFER VALVE RES 2A & 3A
S 745-028
(22)
Choose "Input Monitoring" from page 2 of the CMC menu.
S 745-029
(23)
In the MCDU scratchpad, input the data as follows:
(a)
PORT E/10
(b)
LABEL 271
(c)
SDI 10
S 745-030
(24)
Make sure that the Bit 11 is "1" (Reserve 2 valve disagree).
S 865-031
(25)
Close this circuit breaker:
(a)
On the P7 panel: 1) 7H22, FUEL XFER VALVE RES 2A & 3A
S 745-032
(26) Make sure that the Bit 11 is "0" (Reserve 2 valve agree).
TASK 28-22-14-725-011
3. Valve Position Logic Card A9 Functional Test
____________________________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 28-22-16/401, Fuel System Card File
(3)
AMM 31-61-00/501, Intergrated Display System (IDS)
(4)
AMM 32-09-02/201, Air/Ground Relays
(5)
AMM 34-61-02/401, Control Display Unit
(6)
AMM 45-10-00/201, Central Maintenance Computer System
B.
Access
(1)
Location Zones
221 Control Cabin, Left
222 Control Cabin, Right
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