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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
S 745-162
(23)
Push the LSK adjacent to <INPUT MONITORING from the OTHER FUNCTIONS MENU page on the CDU.
S 745-163
(24)
Make sure that bit 12 is "0" for the ARINC word "C/052/350/00".
M. ADC Interface Test
S 745-064
(1) Do the input monitoring check for the air data system:
(a)
Push the LSK adjacent to <OTHER FUNCTIONS from the CMC MENU page 2/2 on the CDU.
(b)
Push the LSK adjacent to <INPUT MONITORING from the OTHER FUNCTIONS MENU page on the CDU.
(c)
Use the alphanumeric keys on the CDU to put "C/025/350/01" into the scratchpad.
NOTE: Port 025 = UPR YDM
____
(d)
Push the LSK 1L to move the data into the correct position.
(e)
Use the NEXT PAGE key on the CDU to show the subsequent page.
(f)
Use the alphanumeric keys on the CDU to put "C/052/350/01" into the scratchpad.
NOTE: Port 052 = LWR YDM
____
(g)
Push the LSK 1L to move the data into the correct position.
(h)
Make sure that bits 11, 12, and 14 are "0" for the ARINC word "C/052/350/01" and the ARINC word "C/025/350/00" .
NOTE: (LBL 350, SDI00, BIT 11) = PRI DADC FAULT
____ (LBL 350, SDI00, BIT 12) = SEC DADC FAULT (LBL 350, SDI00, BIT 14) = DADC DIFF FAULT
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
N. IRU Interface Test
S 745-065
(1) Do the input monitoring check for the inertial references system:
(a)
Push the LSK adjacent to <OTHER FUNCTIONS from the CMC MENU page 2/2 on the CDU.
(b)
Push the LSK adjacent to <INPUT MONITORING from the OTHER FUNCTIONS MENU page on the CDU.
(c)
Use the alphanumeric keys on the CDU to put "C/025/350/01" into the scratchpad.
NOTE: Port 025 = UPR YDM
____
(d)
Push the LSK 1L to move the data into the correct position.
(e)
Use the NEXT PAGE key on the CDU to show the subsequent page.
(f)
Use the alphanumeric keys on the CDU to put "C/052/350/01" into the scratchpad.
NOTE: Port 052 = LWR YDM
____
(g)
Push the LSK 1L to move the data into the correct position.
(h)
Make sure that bits 17, 18, 19, and 20 are "0" for the ARINC word "C/052/350 01" and the ARINC word "C/025/350/01".
NOTE: (LBL 350, SDI01, BIT 17) = LEFT IRU FAULT
____ (LBL 350, SDI01, BIT 18) = RIGHT IRU FAULT (LBL 350, SDI01, BIT 19) = CENTER IRU FAULT (LBL 350, SDI01, BIT 20) = IRU DIFF FAULT
O. Accelerometer Interface Test
S 745-066
(1) Do the input monitoring check for the accelerometers:
(a) Push the LSK adjacent to <OTHER FUNCTIONS from the CMC MENU page 2/2 on the CDU.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
(b)
Push the LSK adjacent to <INPUT MONITORING from the OTHER FUNCTIONS MENU page on the CDU.
(c)
Use the alphanumeric keys on the CDU to put "C/025/350/00" into the scratchpad.
NOTE: Port 025 = UPR YDM
____
(d)
Push the LSK 1L to move the data into the correct position.
(e)
Use the NEXT PAGE key on the CDU to show the subsequent page.
(f)
Use the alphanumeric keys on the CDU to put "C/052/350/00" into the scratchpad.
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