Increase Corrective Action RA

This type of RA tells the flight crew to increase the corrective maneuvers because of maneuver changes from the threat airplane or because the flight crew did not react quickly enough to the initial RA:

· INCREASE CLIMB - INCREASE CLIMB. This follows the CLIMB advisory. The range of advised climb rates shifts to tell the flight crew to increase the climb rate.

· INCREASE DESCENT - INCREASE DESCENT. This follows the DESCEND advisory. The range of advised descent rates shifts to tell the flight crew to increase the descent rate.

· CLIMB, CLIMB NOW - CLIMB, CLIMB NOW. This follows the DESCEND advisory. A climb is now necessary to give safe vertical separation at CPA.

· DESCEND, DESCEND NOW - DESCEND, DESCEND NOW.

This follows the CLIMB advisory. A descent is now necessary to give safe vertical separation at CPA. Clear of Conflict When the range of the threat airplane that causes an RA increases, the aural message CLEAR OF CONFLICT comes on.