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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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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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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