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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
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 865-160
 (10) Prepare the INPUT MONITORING page to monitor label 270:
 NOTE: Label 270 monitors this input:
____ -FMC master switch
 (a)  
Push E/42/270/00 on the scratchpad for the center CDU.

 (b)  
Push the necessary LSK to show E/42/272/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE shows intermittently below E/42/270/00.

 S 735-161
 (11) Do the FMC input check for label 270:
 (a)  Set the FMC master switch to the R-FMC position.
 NOTE: The FMC master switch is on the P2 pilot's center
____
 instrument panel.

 (b)  
Make sure 0 shows for bit position 24.

 (c)  
Set the FMC master switch in the L-FMC position.

 (d)  
Make sure 1 shows for bit position 24.

 S 865-162
 (12) Prepare the INPUT MONITORING page to monitor E/42/274/00:
 NOTE: Label 274 monitors these inputs:
____ -Air/Ground status (1=ground)
 -A/T Disconnect (1=disconnect)
 -Go Around status (1=G/A)
 (a) Push E/42/274/00 on the scratchpad for the center CDU.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  Push the necessary LSK to show E/42/274/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE intermittently shows below E/42/274/00.
 S 735-163
 (13) Do the input check for label 274:
 (a)  
Open this circuit breaker:

 1)  P7 Overhead Circuit Breaker Panel a) 7F23 LANDING GEAR DSP & CONT ALTN

 (b)  
Make sure 0 shows for bit position 26.

 (c)  
Close this circuit breaker:

 1)  P7 Overhead Circuit Breaker Panel a) 7F23 LANDING GEAR DSP & CONT ALTN

 (d)  
Make sure 1 shows for bit position 26.

 (e)  
Push and hold the TO/GA switches.

 NOTE: The TO/GA switches are on the two inner throttle levers.
____
 (f)  
Make sure 1 shows for bit position 27.

 (g)  
Release the TO/GA switches.

 (h)  
Make sure 0 shows for bit position 27.

 (i)  
Push and hold the captain's A/T disconnect switch.

 NOTE: The captain's A/T disconnect switch is on the left
____
 throttle lever.

 (j)  
Make sure 1 shows for bit position 28.

 (k)  
Release the captain's A/T disconnect switch.

 (l)  
Make sure 0 shows for bit position 28.

 S 865-164
 (14) Prepare the INPUT MONITORING page to monitor E/42/160/00:
 NOTE: Label 160 monitors these inputs:
____ -NAV source select switch
 -ADC source select switch
 -HDG reference select switch (1=NORM, 0=TRUE)
 (a)  Push E/42/160/00 on the scratchpad for the center CDU.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 34-61-00
 ALL  ú ú 02 Page 523 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  Push the necessary LSK to show E/42/160/00 below the PORT LBL SDI indication. 1) Make sure SAMPLE intermittently shows below E/42/160/00.
　
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