Operation Manual Part 2

Aerosoft – Digital Aviation

CRJ-70 & CRJ-900

AOM PART 2

Systems Description

VOL

5-1-10

26-Jul-2017

MASTER CAUTION LIGHT

Positioned right next to the master warning

light is the master caution light. It works the

same way the master warning light does.

In the following two cases the master caution

may not be muted:

• GPWS and TCAS voice alerts

• Altitude alert (C-chord) aural

CREW ALERTING SYSTEM (CAS)

All warning / caution messages are sorted by priority / urgency and order of occurrence. The CAS works with

four categories of messages, with different colour codes and behaviour, indicated in the following table.

In case the triggering condition / fault is removed the message will disappear from the EICAS again. New

messages are added on top according their priority / category.

If the number of message exceeds the available lines in the EICAS, the message “PAGE 1/2” appears in red. All

further messages are available on the following page(s). Press the CAS button to access the messages on the

second side.

When messages are excluded from view by pressing the CAS button a “MSGS” message appears in the EICAS

reminding the crew of the excluded messages. Same goes for advisories and status messages on the STAT

page.