TYPE OF FAULT HRD = HARD INT = INTERMITTENT NO INDICATION = NON-DETERMINED (N/A IS SHOWN FOR ENGINE FAULTS)
THE FAULT HISTORY SUMMARY SHOWS EACH FLIGHT LEG (AND THE TYPE OF FAULT) FLIGHT LEG IN WHICH THE CMCS FAULT MESSAGE OCCURRED.
Fault History
Figure 207 (Sheet 1)
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MAINTENANCE/CMCS BITE MANUAL
FLIGHT DECK EFFECT IS CORRELATED TO THE CMCS MESSAGE
Fault History Figure 207 (Sheet 2)
A05109
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A. General
(1) The fault history function supplies data about CMCS fault messages that occurred before or during the present flight leg. CMCS fault messages are kept in the non-volatile memory (NVM) of the CMC. The fault history function shows the contents of the NVM. You can look at the CMCS fault messages in NVM and the FDEs that are correlated to them.
B. Access
(1) Location zones
221 Control Cabin, LH
222 Control Cabin, RH
C. Procedure
S 862-037
(1) Show page 2 of the CMC MENU on the CDU:
(a)
Push the MENU key on the CDU to show the CDU MENU.
(b)
Push the <CMC LSK (line select key) to show the CMC MENU.
(c)
If the CMC MENU is not shown after you push the CMC LSK, push the <RETURN LSK until you see the CMC MENU.
(d)
Push the NEXT PAGE key to show page 2 of the CMC MENU.
S 862-038
(2) Show the fault history data for a system:
(a) Push the <FAULT HISTORY LSK to show a list of the systems that have data in fault history.
NOTE: It can be necessary to push the NEXT PAGE key to see all
____ the systems that have fault history data.
(b)
Push the LSK adjacent to the applicable system prompt to show the FAULT HIST SUMMARY page for that system.
(c)
Push the NEXT PAGE key to see FAULT HIST SUMMARY pages for other CMCS fault messages related to the same system.
(d)
Push the LSK adjacent to the CMCS fault message to show the FAULT HISTORY MSG page for the first flight leg shown on the SUMMARY page.
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(e) Push the NEXT PAGE key to see the message page for a different flight leg.
NOTE: Each time you push the NEXT PAGE key you will see the
____ message page for a different flight leg. The pages are in sequence from the newest to the oldest flight leg. When you see the oldest message page, push the NEXT PAGE key to see the newest message page again.
(f) If the FDE has a caret (<) adjacent to it, push the LSK adjacent to the FDE to see a different FDE that is correlated to the CMCS fault message.
NOTE: If you push the FDE LSK when you see the last FDE,
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