SUBTASK 47-31-02-740-101
(7) If the ground test is satisfactory, TEST PASS shows on the display when the test is complete.
SUBTASK 47-31-02-740-102
(8) If the ground test is not satisfactory, a BDU test result fault message will show.
NOTE: The fault messages for the BDU test results are shown in sequence. The first fault
message is the most recent. The second fault message is the second most recent
fault.
H. BDU Test Results
SUBTASK 47-31-02-740-044
(1) Make sure that a BDU test result fault message shows on the display.
(a) Push the down arrow.
1) MORE DETAILS? shows on the display
(b) Push the down arrow.
1) The second most recent fault message will show (if applicable).
(c) Continue to push the down arrow to see all of the fault messages for the applicable BDU
ground test.
I. BDU Test Fault Details
SUBTASK 47-31-02-740-045
(1) Push the up or down arrows to get to the applicable fault message that you want to
troubleshoot.
(a) Push the down arrow.
1) MORE DETAILS? shows on the display.
(b) Push the YES button.
1) The menu items for the BDU test fault details list shows.
SUBTASK 47-31-02-740-046
(2) These are the menu items for the BDU test fault details list:
(a) POSSIBLE CAUSES?
(b) SHOP DETAILS?
SUBTASK 47-31-02-740-103
(3) Push the up or down arrows to see all of the menu items for the BDU test fault details list.
J. BDU Test Possible Causes
SUBTASK 47-31-02-740-047
(1) Make sure that the applicable fault message for the BDU test result shows.
(a) Push the down arrow.
1) MORE DETAILS? shows on the display.
(b) Push the YES button.
1) The menu items for the BDU test fault details list shows on the display.
(c) Push the down arrow.
1) POSSIBLE CAUSES? shows on the display.
(d) Push the YES button.
1) The most probable cause of the fault will show.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-31-02
Page 237
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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