FAA Approved Airplane Flight Manual Supplement

190-00716-03 Rev. 4 Hawker Beechcraft B300 and B300C King Air
Page 157 of 173
The following voice messages annunciate enhanced TCAS II maneuvers when initial RA does not provide
sufficient vertical separation. The tone and inflection indicate increased urgency:
 “INCREASE CLIMB, INCREASE CLIMB”-- climb at the rate depicted by the green (fly-to) arc on the
VSI, nominally between 2,500 and 3,000 fpm. Received after “CLIMB” advisory, and indicates
additional climb rate is required to achieve safe vertical separation from a maneuvering aircraft.
 “INCREASE DESCENT, INCREASE DESCENT”-- descend at the rate depicted by the green (fly-to)
arc on the VSI, nominally between 2,500 and 3,000 fpm. Received after “DESCEND” advisory, and
indicates additional descent rate is required to achieve safe vertical separation from a maneuvering
aircraft.
 “CLIMB – CLIMB NOW, CLIMB – CLIMB NOW”-- climb at the rate depicted by the green (fly-to) arc
on the VSI, nominally between 1,500 and 2,000 fpm. Received after a “DESCEND” resolution
advisory and indicates a reversal in direction is required to achieve safe vertical separation from a
maneuvering threat aircraft.
 “DESCEND – DESCEND NOW, DESCEND – DESCEND NOW”- descend at the rate depicted by the
green (fly-to) arc on the VSI, nominally between 1,500 and 2,000 fpm. Received after a “CLIMB”
resolution advisory and indicates a reversal in direction is required to achieve safe vertical separation
from a maneuvering threat aircraft.
TCAS Resolution Advisories (RA) are inhibited below some radio altitudes. The chart below outlines the
TCAS inhibits produced from radio altimeter information and the associated RA status.
RESOLUTION ADVISORY (RA) STATUS RADIO ALTITUDE
“INCREASE DESCENT” RA
Inhibited below 1650 ft AGL while climbing and
inhibited below 1450 ft AGL while descending.
“DESCEND” RA
Inhibited below 1200 ft AGL while climbing and
inhibited below 1000 ft AGL while descending.
TA ONLY Aural Messages
Inhibited below 400 ft AGL while descending and
inhibited below 600 ft AGL while climbing.
Other RAs
Inhibited below 1100 ft AGL while climbing, and
inhibited below 900 ft AGL while descending.
(TCAS automatically reverts to TA ONLY mode).
Advisory Priority
Automatically reverts to TA ONLY when higher
priority advisories (such as GPWS/TAWS) occur.