(c)
IRUs must be in the NAV mode (AMM 34-21-00/201).
(d)
Central Maintenance Computer (CMC), serviceable (AMM 45-10-00/501).
(e)
Flight Control Computer (FCC), serviceable (AMM 22-11-01/401).
(f)
Flight Management Computer (FMC), serviceable (AMM 34-61-00/501).
(g)
Air Data Computer (ADC), serviceable (AMM 34-12-01/401).
E. Prepare for the Test
S 865-301
(1)
Supply electrical power (AMM 24-22-00/201).
S 865-416
(2)
Align the left, center and right IRUs in the NAV mode
(AMM 34-21-00/201).
S 865-418
(3)
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 <FCC INSTRUMENTS.
NOTE: If INHIBITED shows above <FCC INSTRUMENTS the test will
____
not operate.
(g) If INHIBITED shows above <FCC INSTRUMENTS: 1) Push the LSK that is adjacent to the test prompt.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
22-10-00
ALL ú ú 04 Page 531 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) Do the steps shown on the CDU. 3) Push the LSK that is adjacent to <RETURN to show the ground test menu again.
F. FCC Instruments Ground Test
S 745-304
(1) Push the LSK that is adjacent to <FCC INSTRUMENTS.
(a)
When the TEST PRECONDITIONS page shows, make sure each instruction on the page is completed. (Push the NEXT PAGE key to see subsequent pages.)
(b)
Push the LSK that is adjacent to START TEST>.
(c)
Continue with the instructions shown on the CDU to complete the test.
NOTE: If <ADVANCE shows during the test, push <ADVANCE to
____ continue after you complete or read the instructions.
S 745-305
(2) When the test is completed, look for PASS or FAIL> adjacent to <FCC INSTRUMENT.
NOTE: If a PASS indication shows, no failures occurred during the
____
test.
(a) If FAIL> shows: 1) Push the LSK that is adjacent to FAIL> to see the GROUND TEST MSG pages for the failure. 2) Push the NEXT PAGE key until you find all the GROUND TEST MSG pages. 3) Make a list of all CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages.
4) Go to the CMCS Message Index of the Fault Isolation Manual (FIM) to find the corrective action for each CMCS message.
G. Put the Airplane in Its Usual Condition
S 865-306
(1) Set all the mode selector switches on the IRS control panel (P5) to the OFF position if it is not necessary (AMM 34-21-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
22-10-00
ALL ú ú 04 Page 532 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 865-307
(2) Remove the electrical power if it is not necessary
(AMM 24-22-00/201).
TASK 22-10-00-745-219
14. Ground Test - Speed Brake Transducer
____________________________________
A. General
(1) This test is for a check of the speed brake transducer. It makes sure that the speed handle position is correctly sent to the FCC by the speed brake handle RVDTs.
B. References
(1)
AMM 22-11-01/401, Flight Control Computer
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(48)
