BendixKing CAS 67A ACAS II - Manual (Page 104)

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WARNINgS ANd LIMITATIONS (CONT’d)
• tCaS can be configured to inhibit (or allow) the display of traffic
considered “on the ground”. When configured to inhibit the display
of traffic on the ground, Mode S equipped aircraft reporting “on the
ground” will not be displayed. also, when own aircraft is within radio
altitude limits, Mode C equipped aircraft considered “on the ground”
will not be displayed. When configured to display intruders on the
ground, all aircraft considered “on the ground” will be displayed as
“other traffic” (open diamond).
• Increase Descent resolution advisories are inhibited below 1450
feet aGL.
• all resolution advisories are inhibited below 900 feet descending
or 1100 feet ascending.
• all tCaS II audio warnings are inhibited below 400 feet radio
altitude on approach and up to 600 feet radio altitude on departure.
• tCaS II tracking range can be severely limited in high traffic areas.
this is especially true of high traffic areas with a high density of
tCaS equipped aircraft such as terminal areas and while on the
ground. While on the ground, range may be reduced to below five
miles. after takeoff range will increase, but may still be limited to
under 10 miles. this tracking range limiting is required in order to
comply with Faa regulations, to ensure that tCaS II will not inter-
fere with atC ground station tracking. this should not be interpreted
as a system malfunction.
CAUTIONS
always attempt to visually clear the airspace before maneuvering
your aircraft in response to a tCaS advisory. dO NOT overreact
to a resolution advisory. Fly only the vertical speed command-
ed. Using higher vertical speeds than that commanded on the
ra/VSI is not better. Be alert and comply with modified or weak-
ening ras (annunciated by “adjust Vertical Speed, adjust”) to
minimize displacement from your atC clearance.
the tCaS installation can be wired to give GPWS and Wind
Shear higher priority than tCaS. In case of simultaneous audio
alarms, the tCaS II system is placed in ta onLy mode and the
ra/VSI flag will show the ra oFF.
CAS 67A/67B ACAS II Pilot’s Guide Rev 3 4/13
Appendices
006-18201-0000-r003 CaS 67a_67B aCaS Pilots Guide 2013 0410_CaS 67a 4/10/13 11:12 aM Page 98