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Troubleshooting
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Select color for CAS message that you wish to troubleshoot

(WARNING)
RED MESSAGE
(CAUTION)
AMBER MESSAGE
(ADVISORY)
CYAN MESSAGE
(STATUS)
WHITE MESSAGE
Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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For AOG assistance contact:

CRC Montreal (YUL)
Quick Links
efis comparator inop arrow btn

EFIS comparator is unable to compare one or more of the parameters that follow: altitude, airspeed, roll attitude, pitch attitude, heading, radio altitude, flight director, localizer or glideslope.

efis miscompare arrow btn

There is a mismatch between the same side and opposite side data.

l eng dspl miscomp arrow btn

There has been a mis-compare of engine related flight critical parameters.

l iaps fail arrow btn

DCU doesn't receive valid data from the left IOC or the PWR has stopped to operate.

pfd x-talk fail arrow btn

Communication between the PFDs has failed.

r eng dspl miscomp arrow btn

There has been a mis-compare of engine related flight critical parameters.

r iaps fail arrow btn

DCU does not receive valid data from the right IOC or the PWR has stopped to operate.

cas miscompare arrow btn

There has been a miscompare of warning, caution, advisory, status or aural warnings for more than 20 seconds.

dcu fan fail arrow btn

DCU fan has failed.

dcu fault arrow btn

Channel A or B in the DCU has failed.

fdr fail arrow btn

The manual mode does not operate (on the ground only).

fdr fault arrow btn

FDR has failed.

iaps fan fault arrow btn

IAPS has detected a fan failure, over-temperature, or a temperature sensor failure.

mfd x-talk fail arrow btn

Communication between the MFDs has failed.

rdc fan fail arrow btn

RDC fan has failed.

rdc fault arrow btn

Channel A or B of the RDC has failed with no loss of functionality.

aural warn a muted arrow btn

AURAL WARNING DCU A switch has been set.

aural warn b muted arrow btn

AURAL WARNING DCU B switch has been set.

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