(am) Set the autopilot TRIM CUTOUT switch on the aisle stand to the NORMAL position.
(an) Open the AFDS MCP DC circuit breaker on the P18-1 Circuit Breaker Panel.
(ao) After 10 seconds, engage the autopilot channel A to the CMD mode.
(ap) Push the HDG SEL button.
(aq) Make sure that the HDG SEL mode is engaged.
(ar) Open the AFDS MCP CRS-2 DC circuit breaker on the P6-2 Circuit Breaker Panel.
(as) Make sure that the autopilot channel A is disengaged.
(at) Close the AFDS MCP DC circuit breaker on the P18-1 Circuit Breaker Panel.
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737-300/400/500MAINTENANCE MANUAL
(au) Engage the autopilot A to CMD mode.
(av) Wait approximately 10 seconds.
(aw) Push the HDG SEL button on the MCP.
(ax) Make sure the HDG SEL mode is engaged.
(ay) Close the AFDS MCP CRS-2 DC circuit breaker on the P6-2 Circuit
Breaker Panel. (az) Push the INIT/REF key on the CDU keyboard to show the POS INIT page or PERF INIT page. (ba) Push the LSK adjacent to <INDEX to show the INIT REF INDEX 1/1 page. (bb) Push the LSK adjacent to MAINT> to show the MAINT BITE INDEX 1/1 page. (bc) Push the LSK adjacent to <DFCS to show the DFCS BITE TEST LINE
MAINT 1/2 page. (bd) Push the LSK adjacent to <INFLIGHT FAULTS. (be) Use the CDU keyboard to put code 900 into the scratchpad. (bf) Push the LSK 6R. (bg) Push the LSK adjacent to <YES. (bh) Push the LSK adjacent to <CHANNEL A AND B. (bi) Make sure the word TEST IN PROGRESS is shown on the CDU display
for approximately 30 seconds. (bj) Make sure that NO FAILURES is shown on the CDU. (bk) Push the INIT/REF key on the CDU keyboard to get out of the
BITE.
S 865-157
(4) Remove hydraulic power if it is not necessary (AMM 29-15-00/201).
R. Flap Switch Rigging Test
S 865-160
(1) Make sure that the left and right IRU switches are in the NAV mode (AMM 34-28-00/501).
S 865-159
WARNING: MAKE SURE THAT YOU PREPARE THE AIRPLANE FOR THE AIR MODE
_______ BEFORE YOU OPEN THE CIRCUIT BREAKER THAT FOLLOWS. AUTOMATIC OPERATION OF THE AIRPLANE SYSTEMS IN THE AIR MODE CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Supply hydraulic power (AMM 29-15-00/201).
S 735-158
(3)
Do the Flap Switch Rigging Test
(a)
Set the flaps to the 0-unit position.
(b)
Engage the autopilot channel A in the CMD mode.
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737-300/400/500MAINTENANCE MANUAL
(c)
Set the flaps to the 1-unit position.
(d)
Make sure that the autopilot channel A stays engaged in the CMD mode, when the flap position indicator is stable.
(e)
Set the flap to the 0-unit position.
(f)
Make sure that the autopilot channel A stays engaged in the CMD mode when the flap position indicator is stable.
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