*
EICAS caution message
*
EICAS advisory message
*
EICAS status message
*
PFD Flag
*
ND FLag
*
EICAS auto snapshot
*
Display (exceedance, etc.)
*
Scheduled maintenance task (SMT).
The CMCF may also correlate a maintenance message to a maintenance memo (MO).
EFFECTIVITY
BEJ ALL
Storable Flight Phase Logic
The CMCF stores the active or latched maintenance message and correlation in temporary memory. The CMCF calculates the flight phase. If the maintenance message is active or latched during a storable flight phase, the CMCF also stores the maintenance message and correlation in fault history memory.
Maintenance Message Display -Temporary Memory
The CMCF will always show an active or latched maintenance message on the MAT. This chart shows which MAT displays show the maintenance message when it is active or latched and stored in temporary memory:
Maintenance message is active or latched and correlates to: Shows on display(s):
None Existing Faults
FDE Existing Flight Deck Effects
Existing Faults
Maintenance Memo (MO) Existing Maintenance Memos
Existing Faults
Scheduled Maintenance Task (SMT) Existing Scheduled Maintenance Tasks
Existing Faults
If a maintenance message becomes not active, the CMCF
removes the maintenance message and correlation from
temporary memory. It no longer shows on the above displays.
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CMCS -CMCF FLIGHT PHASE SCREENING
Maintenance Message Display -Fault History Memory
If the maintenance message is active or latched during a storable flight phase, the maintenance message and correlation is also in fault history memory. The maintenance message and correlation shows on the above displays when it is active or latched. This chart shows which other MAT displays show the maintenance message when it is stored in fault history memory:
Maintenance message is active or latched during a storable flight phase and correlates to: Shows on display(s):
Present Leg Faults
None Fault History
Inbound Flight Deck Effects
FDE Present Leg Faults
Fault History
Inbound Maintenance Memos
Maintenance Memo Present Leg Faults
Fault History
Inbound Scheduled Maintenance Tasks
Scheduled Maintenance Tasks Present Leg Faults
Fault History
If a maintenance message becomes not active, the CMCF keeps the maintenance message and correlation in fault history memory. It changes the maintenance message activity to not active.
Training Information Point
Some FDEs with no correlated maintenance messages show on the existing flight deck effects display. Normal conditions on the ground, such as engine shutdown, usually cause these FDEs.
Latched EICAS status messages stay on the inbound and existing flight deck effects display after the correlated maintenance message becomes not active. When you erase the status message from the maintenance task maintenance page:
*
The CMCF changes the status message activity to not active on the inbound flight deck effects display.
*
The CMCF removes the status message from the existing flight deck effects display.
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CMCS -CMCF FLIGHT PHASE SCREENING
EFFECTIVITY BEJ ALL 45-10-00
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CMCS -FAULT DISPLAY SUMMARY
General
You can see flight deck effects (FDEs) and maintenance message (fault) data on many different CMCS displays.
You use the different displays for different work on the airplane. You use the fault isolation manual (FIM) to find the cause of maintenance messages.
These displays show FDEs and their correlated maintenance messages:
*
Inbound flight deck effects
*
Existing flight deck effects.
These displays show maintenance messages and their correlated FDEs:
*
Present leg faults
*
Existing faults
*
Fault history.
These displays show maintenance memos (MOs) and their correlated maintenance messages:
*
Inbound maintenance memos
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