Tcas Status Messages - Honeywell PRIMUS 1000 Pilot's Manual

There are two types of RAs:
D
Corrective – A corrective RA recommends a deviation from the
current vertical rate to avoid an intruder.
D
Preventive – A preventive RA recommends avoiding certain
deviations from the current vertical rate.
RA directions from the TCAS computer are in the form of vertical speed
commands displayed on the VSI scale.
D
TCAS Resolution Advisory (RA) Display – The RA consists of
one or two red
red bands cover vertical speeds that should be avoided if it is a
preventive RA, or regions that should be left at once if it is a
corrective RA. The
vertical speed command cue for the pilot during corrective RAs.
D
TCAS Status Messages – The TCAS status messages listed in
Table 3–24 are displayed at the top left of the vertical speed display
on the PFD.
TCAS System
TCAS I
TCAS II
A28–1146–134
REV 1 Jan/03
bands and one green
green band gives a fly–to indication that is the

TCAS Status Messages

Table 3–24
R
PRIMUS 1000 Integrated Avionics System
band inside the VSI scale. The
Message
TCAS FAIL
TCAS OFF (white)
TA ONLY (white)
TCAS INOP (white)
TCAS TEST
TCAS FAIL
TCAS OFF (white)
TA ONLY (white)
RA FAIL or RA FAIL
TCAS INOP (white)
Electronic Flight Instrument System (EFIS)
3-65