Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 120; Flight Crew Total 7800; Flight Crew Type 4000
Situational Awareness
Conflict NMAC; Deviation - Altitude Excursion From Assigned Altitude
Flight Crew Took Evasive Action
Human Factors
While on a visual approach to Runway 15 at ADS; approach control called out a primary target that was not communicating with ATC. We were level at 4;000 MSL and primary target was climbing under us. We got a TA at first then a RA requiring a climb. We climbed to 5;000 MSL before the threat disappeared. We advised ATC of our actions and landed without further event.
BE40 Captain reported an NMAC with another aircraft while on a visual approach to ADS.