FAA Approved Airplane Flight Manual Supplement

Hawker Beechcraft B300 and B300C King Air 190-00716-03 Rev.4
Page 156 of 173
Because of these requirements and the rate limits of the autopilots, all RA responses must be hand-flown
and not with the autopilot engaged.
Modified advisories are posted after the response to an initial advisory has been completed and the TCAS
II airplane is projected to have adequate altitude separation from the intruder. The initial RA is said to
weaken, indicating a return towards the original flight path or clearance is allowed. When the initial
advisory weakens, the green band on the VSI is repositioned to indicate level flight, the magnitude of the
red band decreased, and “LEVEL OFF, LEVEL OFF” is announced. The modified RA indicates a return to
level flight so that the altitude displacement in response to the initial RA can be minimized. This RA will
remain displayed until the “CLEAR OF CONFLICT” aural annunciation is issued. Following the weakening
advisory will greatly reduce the ultimate altitude deviation caused by the original corrective resolution
advisory.
After deviating from an ATC clearance or instruction in response to a TCAS II RA, notify ATC of the
deviation as soon as possible. Following a TCAS II “CLEAR OF CONFLICT” advisory, the pilot should
expeditiously return to the applicable ATC clearance unless otherwise directed by ATC.
The threat aircraft track or altitude information can be lost during an RA. If so, the RA will terminate
without a “CLEAR OF CONFLICT” annunciation.
TCAS II resolution advisories are annunciated by the following voice messages, along with the expected
pilot response:
 “CLIMB, CLIMB”-- climb at the rate depicted by the green (fly to) arc on the VSI, nominally between
1,500 and 2,000 fpm.
 “DESCEND, DESCEND”-- descend at the rate depicted by the green (fly to) arc on the VSI nominally
between 1,500 and 2,000 fpm.
 “MONITOR VERTICAL SPEED”-- ensure that vertical speed is out of the illuminated VSI red arc until
the RA is completed.
 “LEVEL OFF, LEVEL OFF” -- reduce vertical speed to zero feet per minute. A green arc will be
displayed on the VSI beginning at zero feet per minute. This can be issued as the initial RA or as a
subsequent RA.
 “CLEAR OF CONFLICT”-- range is increasing, and separation is adequate. Expeditiously return to
the applicable ATC clearance, unless otherwise directed by ATC.
 “CLIMB, CROSSING CLIMB, CLIMB, CROSSING CLIMB”-- climb at the rate depicted by the green
(fly to) arc on the VSI, nominally between 1,500 and 2,000 fpm. Safe separation will best be achieved
by climbing through the threat aircraft’s flight path.
 “DESCEND, CROSSING DESCEND, DESCEND, CROSSING DESCEND”-- descend at the rate
depicted by the green (fly to) arc on the VSI, nominally between 1,500 and 2,000 fpm. Safe
separation will best be achieved by descending through the intruder’s flight path.
 “MAINTAIN VERTICAL SPEED, MAINTAIN”-- continue the existing climb or descent rate, or other
vertical speed, as depicted by the green (fly to) arc on the VSI.
 “MAINTAIN VERTICAL SPEED, CROSSING MAINTAIN”— continue the existing climb or descent
rate, or other vertical speed, as depicted by the green (fly to) arc on the VSI. Safe separation is best
achieved by not altering the existing vertical speed and climbing or descending through the threat’s
flight path.