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1 Dec 2003
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MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
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RA/VSI Controls and Indicators
Figure 14
Two Flags
TCAS Flag
Color
Description
RA OFF
Black RA OFF on White Shows an impairment of the TCAS
function which is due to a loss of
essential aircraft data, or TCAS data,
indicator power OFF, TCAS in STBY
mode or TCAS in TA mode. Also
appears when VSI appears.
NORMAL
Black
Shows normal operation of TCAS
functions.
TCAS
Black TCAS on Amber
Shows a loss of, or invalid digital TCAS
data or SSM set to Failure Warning.
VS Flag
NORMAL
Black
Shows normal operation of VSI
functions.
VSI
Black VSI on Amber
Shows a loss of or invalid digital
Vertical Speed data, invalid flag for
analog data sources, detected internal
failures of the RA/VSI, or power loss to
the RA/VSI.