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747-400
MAINTENANCE MANUAL
(b) Push the necessary LSK to show E/46/351/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE intermittently shows below E/46/351/00.
S 735-176
(7) Do the inputs check for label 351:
(a) Set the left, center, and right IRS mode select switches to the ALIGN position.
NOTE: The IRS mode select switches are on the P5 pilot's
____
overhead panel.
(b)
Make sure 0 shows for bit positions 11, 12, 13, 14, 15, 16, 17, 18, 20 and 21.
(c)
Set the L-IRS mode select switch to the OFF position.
(d)
Open these circuit breakers:
1) P7 Overhead Circuit Breaker Panel
a) 7C2 FMCS CDU L
b) 7E9 MCP L
c) 7E19 MCP R
d) 7G19 ACARS AC
2) P6 Main Power Distribution Panel
a) 6D5 FUEL QTY 1
b) 6D6 FUEL QTY 2
3) P414 Left Main Power Distribution Panel a) 414K20 WT & BAL b) 414L37 PRINTER AC
(e)
Make sure 1 shows for bit positions 11, 13, 14, 15, 20, and 21.
(f)
Close these circuit breakers:
1) P7 Overhead Circuit Breaker Panel
a) 7C2 FMCS CDU L
b) 7E9 MCP L
c) 7E19 MCP R
d) 7G19 ACARS AC
2) P6 Main Power Distribution Panel
a) 6D5 FUEL QTY 1
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747-400 MAINTENANCE MANUAL
b) 6D6 FUEL QTY 2
3) P414 Left Main Power Distribution Panel a) 414K20 WT & BAL b) 414L37 PRINTER AC
(g)
Set the R-IRS mode select switch to the OFF position.
(h)
Open this circuit breaker:
1) P7 Overhead Circuit Breaker Panel
a) 7C24 FMCS CDU R
(i)
Make sure 1 shows for bit positions 12, 15, and 16.
(j)
Close this circuit breaker:
1) P7 Overhead Circuit Breaker Panel
a) 7C24 FMCS CDU R
(k)
Set the C-IRS mode select switch to the OFF position.
(l)
Make sure 1 shows for bit positions 15, 16, and 17.
S 865-177
(8) Prepare the INPUT MONITORING page to monitor E/46/272/00:
NOTE: Label 272 monitors this input:
____ -Autothrottle ARM switch
(a)
Push E/46/272/00 on the scratchpad for the center CDU.
(b)
Push the necessary LSK to show E/46/272/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE intermittently shows below E/46/272/00.
S 735-178
(9) Do the input check for label 272:
(a) Set the A/T ARM switch to the A/T ARM position.
NOTE: The A/T ARM switch is on the P10 automatic flight
____
control panel.
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747-400 MAINTENANCE MANUAL
(b)
Make sure 1 shows for bit position 28.
(c)
Set the A/T ARM switch to the OFF position.
(d)
Make sure 0 shows for bit position 28.
S 865-179
(10) Prepare the INPUT MONITORING page to monitor label 270:
NOTE: Label 270 monitors this input:
____ -FMC master switch
(a)
Push E/46/270/00 on the scratchpad for the center CDU.
(b)
Push the necessary LSK to show E/46/272/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE shows intermittently below E/46/270/00.
S 735-180
(11) Do the FMC input check for label 270:
(a) Set the FMC master switch to the R position.
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