TASK 47-31-02-740-802
3. BDU Existing Fault Menu
(Figure 206)
A. General
(1) This task gives the instructions to operate the BDU control panel for the EXISTING FAULT
menu.
(2) To help you move through the EXISTING FAULT menu, refer to Figure 206.
(3) The existing faults menu lets you find all NGS faults. Existing faults for all flight phases will
show. Existing faults that show might not show the real time fault status. To find out if a fault is
currently active, a menu item, ACTIVE: YES/NO, is provided.
(4) Existing faults show in sequence, with the most recent fault shown first.
B. Location Zones
Zone Area
132 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Right
C. Access Panels
Number Name/Location
192CR ECS Access Door
D. Main Menu
SUBTASK 47-31-02-740-015
(1) Do this task: BDU Main Menu, TASK 47-31-02-740-801.
SUBTASK 47-31-02-740-016
(2) Push the BDU control panel up or down arrows or the NO button until EXISTING FAULTS?
shows.
E. Existing Fault
SUBTASK 47-31-02-740-017
(1) Make sure that the display shows EXISTING FAULTS?.
(a) Push the YES button.
SUBTASK 47-31-02-740-061
(2) The display message, “XXX Faults Found” will show.
NOTE: XXX shows the number of existing faults found.
(a) If 000 FAULTS FOUND shows, then there are no existing faults recorded.
(b) If 001 FAULTS FOUND shows, then push the down arrow to show the existing fault.
(c) If 002 FAULTS FOUND (or more) shows, then push the down arrow to show the most
recent existing fault.
1) Continue to push the down arrow to see all of the existing faults.
F. Fault Details List
SUBTASK 47-31-02-740-018
(1) Do these steps to see the fault details:
(a) Make sure that the applicable fault shows.
(b) Push the down arrow.
1) MORE DETAILS? shows.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-31-02
Page 210
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999;
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405,
406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507, 508, 512-514, 516, 518,
524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672, 686, 703,
707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003
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