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757 MAINTENANCE MANUAL
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(5) Put the airplane back to its usual condition if no other ground tests are necessary.
N. 09 SERVO RUD
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(1) Do the "Prepare to Test" steps.
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WARNING: LOCK THE NOSE GEAR STEERING WHEN RUDDER MOVEMENT IS SCHEDULED
_______
TO PREVENT INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Move the towing lever on the nose gear metering valve module to the TOW POSITION.
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(3)
Install the nose gear steering valve lockpin (Ref 09-11-00).
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(4)
Do the "Supply Hydraulic Power" steps.
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(5)
Do MCDP test 09.
NOTE: The MCDP shows FCC # FAIL for a FCC that had a self-test
____ failure when it went into GRD TEST MODE. The MCDP shows FCC interface faults related to the rudder servos. The MCDP then shows a message to make sure the hydraulic power is supplied. Other messages tell the person to set the rudder trim to zero. The MCDP tells the FCCs to move the servos to adjust the rudder to center and then move it side to side. A person will monitor the movement of the rudder pedals.
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(6) Put the airplane back to its usual condition if no other ground tests are necessary.
O. 10 SERVO A/T
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WARNING: DO SPOILER/SPEEDBRAKE DEACTIVATION PROCEDURE (MM 27-61-00).
_______ IT IS NECESSARY TO MOVE THE THRUST LEVERS DURING THIS TEST WHICH CAN CAUSE SPEEDBRAKE MOVEMENT IF HYDRAULIC POWER IS ON. THIS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Do Spoiler/Speedbrake Deactivation procedure (Ref 27-61-00).
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CAUTION:_______MAKE SURE THE ENGINES ARE NOT IN OPERATION. THIS TEST INCLUDES AUTOMATIC MOVEMENT OF THE THRUST LEVERS AND COULD CAUSE AIRPLANE MOVEMENT IF THE ENGINES ARE IN OPERATION. INJURY TO PERSONS COULD OCCUR.
(2)
Make sure the engines are not in operation.
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(3)
Do the "Prepare to Test" steps.
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(4)
Set the A/T switch on the MCP to OFF.
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(5)
Do MCDP test 10.
NOTE: The MCDP shows TMC FAIL if the TMC had a self-test failure
____ when it went into GRD TEST MODE. The MCDP then shows messages to make sure the thrust levers and cables are clear, and then to set the A/T switch on the MCP to ARM. Data sent to the TMC by the MCDP initializes the throttles to the aft position. Then they move forward and then back to the aft position.
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(6) Put the airplane back to its usual condition if no other ground tests are necessary.
P. 11 SW A/P DISC
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(1)
Do the "Prepare to Test" steps.
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(2)
Do MCDP test 11.
NOTE: The MCDP shows FCC # FAIL for a FCC that had a self-test
____ failure when it went into GRD TEST MODE. The MCDP shows FCC interface faults related to the autopilot disengage switch. The MCDP then tells the person to push and hold, then release, each (Capt, F/O) A/P disengage switch. The switches are monitored for the A/P disengage command operation.
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(3) Put the airplane back to its usual condition if no other ground tests are necessary.
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757 MAINTENANCE MANUAL
Q. 12 SW A/T DISC
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(1)
Do the "Prepare to Test" steps.
S 742-076 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 自动飞行 AUTOFLIGHT 1(44)
