(ac) Do the steps (e) thru (z) for the channel B.
 (ad) Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 1)  P18-1 Circuit Breaker Panel
 a) AFCS A SNSR EXC AC
 b) AFCS A FCC DC

 (ae) Push the INIT/REF key on the CDU keyboard to get out of the BITE.
 T.  Spoiler Position Sensors Test
 S 865-158
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDER, ELEVATORS, FLAPS, SLATS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Supply hydraulic power (AMM 29-15-00/201).

 S 745-159

 (2)  
Do the Spoiler Position Sensors Test

 (a)  
Set the speed brake lever to the DOWN position.

 (b)  
Set the pilot's control wheel to its zero position.

 (c)  
Move the pilot's control wheel lightly near the zero position to make sure that the system is in the center.

 (d)  
Push the INIT/REF key on the CDU keyboard to show the POS INIT page or PERF INIT page.

 (e)  
Push the LSK adjacent to <INDEX to show the INIT REF INDEX 1/1 page.

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737-300/400/500MAINTENANCE MANUAL
 (f)  Push the LSK adjacent to MAINT> to show the MAINT BITE INDEX
 1/1 page.
 (g)  Push the LSK adjacent to <DFCS to show the DFCS BITE TEST LINE
 MAINT 1/2 page.
 (h)  Push the NEXT PAGE key on the CDU keyboard to show the DFCS
 BITE TEST OVERNIGHT MAINT 2/2 page.
 (i)  Push the LSK adjacent to <SENSOR VALUES to show the Sensor
 Values Tests Index.
 (j)  Push the LSK adjacent to <ANALOG SIGNALS.
 (k)  Push the LSK adjacent to <CONTINUE until the CDU display shows
 the test 56.11.
 (l)  Make sure that the A and B sides of the test 56.11 show -0.2 to
 0.2v ac.
 (m)  Push the LSK adjacent to <CONTINUE to show the test 56.12 on
 the CDU display.
 (n)  Make sure that A and B sides of the test 56.12 show -0.2 to
 0.2v ac.
 (o)  Push the LSK adjacent to <INDEX to go back to the Sensor Values
 Index page.
 (p)  Push the NEXT PAGE key on the CDU keyboard to show the DFCS
 BITE TEST OVERNIGHT MAINT 2/2 page.
 (q)  Set the speed brake lever to the FLIGHT DETENT position.
 (r)  Push the LSK adjacent to <ANALOG SIGNALS from the Sensor Values
 Index.
 (s)  Push the LSK adjacent to <CONTINUE until the CDU display shows
 the test 56.11.
 (t)  Make sure that the A and B sides of the test 56.11 show 5.5 to
 7.0v ac.
 (u)  Push the LSK adjacent to <CONTINUE to show the test 56.12 on
 the CDU display.
 (v)  Make sure that the A and B sides of the test 56.12 show 5.5 to
 7.0v ac.
 (w)  Set the speed brake lever to the DOWN position.
 (x)  Push the INIT/REF key on the CDU keyboard to get out of the
 BITE.

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737-300/400/500MAINTENANCE MANUAL
 S 865-136
 (3) Remove hydraulic power if it is not necessary (AMM 29-15-00/201).
 U. Master Caution Test
 S 735-153
 (1)  Do the master caution test:
 (a)  
Open the A FCC DC circuit breaker on the P18-1 Circuit Breaker Panel.
　
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