This test checks that the left elevator power control units are operating within the allowable oscillatory force fight tolerances. This test can reset oscillatory force fight latches for the left elevator. This test is similar to the right elevator oscillation monitor test.
Modal Suppression Accelerometer
This test checks for proper operation of the two modal suppression accelerometers. This test can reset latches for the modal suppression accelerometers.
PFC Disconnect Switch
This test checks for proper operation of the PFC DISC switch. This test can reset latches for the PFC DISC switch.
Primary Flight Computer Reset
This test resets a primary flight computer to operational capability after a channel does not operate because the other primary flight computers prevent it.
Primary Flight Computer (C) Lane Reset
This test restores the center primary flight computer to operational capability after a center primary flight computer lane becomes inoperative due to external interface faults or from a maintenance operation. This test is similar to the lane reset tests for the other PFCs.
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PFCS -SYSTEM TESTS
Primary Flight Computer Self Test
This test checks internal primary flight computer functions and cross channel functions of the primary flight control computers.
Radio Altimeter Test Inhibit to PFC Interface
This test makes sure that the primary flight computer can put the radio altimeters in test inhibit mode.
Rudder Trim System
This test checks for proper operation of the rudder trim actuator and the rudder trim switch. This test can reset latches for the rudder trim actuator.
Speedbrake System
This test checks for proper operation of the speedbrake lever transducers, the auto speedbrake thrust reverse switch, and the auto speedbrake actuator limit switch. It will reset latches for the speedbrake lever transducers, the auto speedbrake thrust reverse switch, the radio altimeter and the landing gear truck tilt switch.
Spoiler 1,7,8,14 System
This test checks for proper operation of spoiler pairs 1,14 and 7,8. This test can reset latches for spoiler pairs 1,14 and 7,8. This test is similar to the system tests for the other spoiler surfaces.
Stabilizer System
This test checks for proper operation of the stabilizer position transducers, the stabilizer arm and control solenoid operated valves, the stabilizer rate valves, the stabilizer hydraulic shut off valves and the stabilizer brake. This test can reset fault latches for the stabilizer position transducers, it can also reset stabilizer control module disengage latches.
Transmitter Reset Test
This test resets the latches for the primary flight computers ARINC 629 bus transmitters.
Warning Electronic System to PFC Interface
This test resets latches in the primary flight computer caused by the warning electronic system.
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777 AIRCRAFT MAINTENANCE MANUAL
PFCS -SYSTEM TESTS
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PFCS -LRU REPLACEMENT TESTS
General
These are the LRU replacement tests for the PFCSs and the ACEs:
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Actuator Control Electronics (L1) Replacement
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Actuator Control Electronics (L2) Replacement
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Actuator Control Electronics (C) Replacement
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Actuator Control Electronics (R) Replacement
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Center Primary Flight Computers and Couplers
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Left Primary Flight Computers and Couplers
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Right Primary Flight Computers and Couplers.
Actuator Control Electronics (L1) Replacement
This test is to make sure the L1 actuator control electronics has been replaced correctly. This test also resets any fault latches in the primary flight computer caused by the actuator control electronics. This test is similar to the replacement test for the other ACEs.
Center Primary Flight Computer and Couplers Replacement
This test does a check of the proper installation of the center primary flight computer and all associated ARINC 629 couplers. This test is similar to the replacement test for the other PFCs.
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PFCS -LRU REPLACEMENT TESTS
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PFCS -ACTUATOR CONFIDENCE TEST AND ACE MONITOR TEST INDICATIONS
General
It is necessary to do the actuator confidence test (ACT) and the ACE monitor test (AMT) at specified times. You use the MAT to do these tests. The status of these tests shows on the maintenance task maintenance page. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：777 AMM 飞机维护手册 飞行操纵 Flight Controls 1(18)
