Small Aircraft; Low Wing; 2 Eng; Retractable Gear
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 300
Communication Breakdown; Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict
Flight Crew Executed Go Around / Missed Approach
Human Factors
I was in Aircraft X. I was cleared to land 30L whilst in the downwind. (There was another aircraft instructed to follow us from the south west gap arrival) We had turned Final and the controller asked us to land 30C - I checked and there was another aircraft at our altitude on the parallel runway - I queried the controller - he stated he wanted us to land 30C - so I called a Go-around as this would have ended in a collision. The controller asked me to Ident - he also called the go-around and then cleared Aircraft Y to change and land 30C. The airspace was getting saturated and I believe that he controller due to task saturation mixed us and Aircraft Y. As a result of good communication on both parts we reentered the pattern safely and landed.
GA pilot reported Tower Controller cleared two aircraft to land on the same runway; resulting in a go-around.