S 865-252
(2)
Remove the electrical power if it is not necessary
(Ref 24-22-00/201).
TASK 22-10-00-745-308
18. Ground Test - Aileron Surface Limit___________________________________
A. General
(1) This test is for a check of the aileron surface limit. During this test, the aileron servos move the aileron surface to its limits in the two directions and show the final surface position.
B. References
(1)
AMM 22-11-01/401, Flight Control Computer
(2)
AMM 24-22-00/201, Manual Control
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747-400
MAINTENANCE MANUAL
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
(4)
AMM 34-61-00/501, Flight Management Computer System
(5)
AMM 34-61-02/401, Control Display Unit
(6)
AMM 45-10-00/501, Central Maintenance Computer System
C. Access
(1) Location Zones
221 Control Cabin, LH
222 Control Cabin, RH
D. Preconditions
S 865-460
(1) These conditions are necessary for this task:
(a)
Electrical Power On (AMM 24-22-00/201).
(b)
Hydraulic Pressure Supplied (AMM 29-11-00/201).
(c)
Central Maintenance Computer (CMC), serviceable (AMM 45-10-00/501).
(d)
Control Display Unit (CDU), serviceable (AMM 34-61-02/401).
(e)
Flight Control Computer (FCC), serviceable (AMM 22-11-01/401).
(f)
Flight Management Computer (FMC), serviceable (AMM 34-61-00/501).
E. Prepare for the Test
S 865-309
(1) Supply electrical power (AMM 24-22-00/201).
S 865-310
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Supply the hydraulic pressure to the hydraulic systems NO. 1, 2, 3, and 4 (AMM 29-11-00/201).
S 865-311
(3)
Make sure the FLT CONTROL HYD POWER TAIL 1, 2, 3, and 4 switches are in the NORM position. These switches are on the Pilots' Overhead Maintenance Panel (P461).
S 865-312
(4)
Make sure the FLT CONTROL HYD POWER WING 1, 2, 3, and 4 switches are in the NORM position. These switches are on the Pilots' Overhead Maintenance Panel (P461).
S 865-313
(5)
Set the STAB TRIM 2 and 3 switches on Pilots' Control Stand to the AUTO position.
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S 865-314
(6) Prepare the CDU for the test:
(a)
Push the MENU key on the CDU to show the MENU.
(b)
Push the line select key (LSK) that is adjacent to <CMC to show the CMC MENU.
(c)
If <RETURN shows after you push the LSK, push the LSK that is adjacent to <RETURN until you see the CMC MENU.
(d)
Push the LSK that is adjacent to <GROUND TESTS to show the GROUND TESTS menu.
(e)
Push the LSK that is adjacent to <22 AUTOPILOT FLT DIR to show the GROUND TESTS menu for the autopilot flight director system.
(f)
Push the NEXT PAGE key until you find <AIL SURFACE LIMIT.
NOTE: If INHIBITED shows above <AIL SURFACE LIMIT, the test
____
will not operate.
(g) If INHIBITED shows above <AIL SURFACE LIMIT: 1) Push the LSK that is adjacent to the test prompt. 2) Do the steps shown on the CDU. 3) Push the LSK that is adjacent to <RETURN to show the ground 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 空调 AUTO FLIGHT(55)
