Flight Crew Multiengine; Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 60; Flight Crew Total 1030; Flight Crew Type 220
Situational Awareness; Confusion
Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
On approach; [another aircraft] was inbound from west. He reported on base. I mistakenly flew an opposite downwind since I know the airport does not like left traffic for Runway XX (otherwise I would have flown over toward the southeast to make a left base). I decided to descend and try to stay out of the way. I did not have him in sight until I started to turn 180 degrees back for a right downwind. At this point he broke off approach and I went over to circle until he landed.
Two General Aviation aircraft approaching the airport did not establish visual contact until they experienced a near mid-air collision. They then took evasive action and one held outside the airport area until the other landed.