A320
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 180; Flight Crew Total 18000; Flight Crew Type 8000
Situational Awareness
Conflict Airborne Conflict; Deviation - Altitude Excursion From Assigned Altitude
Flight Crew Took Evasive Action
Human Factors
While on a dogleg to final for a visual to 35L in DEN we had a climb RA when descending through 8500 feet to our cleared altitude of 7000 feet. The First Officer (FO) executed the escape maneuver and we notified ATC we were responding to a climbing RA. ATC had previously called VFR traffic climbing to close to our position. TCAS target showed at our 2 o'clock position at a relative altitude of -500 feet and less than a mile when we responded to the RA. Vertical climb required was in excess of 3500 fpm. We climbed to approximately 10000 feet to clear the conflict. We stabilized; queried ATC; and conducted a visual approach to 35L. Jumpseater was the only one of us to acquire the target visually; a [small aircraft]. On the ground I contacted the Approach control supervisor. He stated that there had been a departure from Front Range (TFG) that was supposed to climb to an altitude below the Class B and were investigating. The supervisor later called back and related that the aircraft had violated the Class B by over 800 feet and the resulting proximity of his aircraft to ours was quite close.
[Report narrative contained no additional information.]
A320 flight crew reported responding to an RA on a visual approach into DEN when a small aircraft entered Class B airspace without authorization.