Flight Crew Private
Flight Crew Last 90 Days 22.7; Flight Crew Total 1159.8; Flight Crew Type 553.7
Communication Breakdown; Confusion; Situational Awareness
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Procedure; Human Factors
I was doing take offs and landings at ZZZ using runway XX. I announced departing runway XX and remaining in the pattern. As I was turning downwind a Cessna 182; Aircraft Y announced he was taking off on runway YY. I looked at the runway and he was really departing on runway XX; not YY. I didn't correct him because I was the only one in the pattern and I thought he just miss-spoke. I had him in sight the whole time. After I did several landings I heard Aircraft Y report 9 miles southwest of the airport and he said he was going to land on runway YY. I told him that XX was the runway being used; and he replied that he would enter a downwind for XX.I did another landing and as I reported turning downwind Aircraft Y reported that he would enter the downwind for XX on the 45. I was wondering how he was going to do that if he was southwest of the airport. As I was on the downwind approaching abeam the numbers of XX; I saw Aircraft Y pass in front of me about 100 feet above and 200 feet horizontally. I watched him pass in front of me and then he reported turning downwind for runway XX. I told him he just flew a crosswind for Runway YY and cut across the downwind for XX. I turned base and final for XX and asked Aircraft Y for his location. He reported crosswind for XX; which I was able to confirm. He was no factor for my landing at that point.The guy in Aircraft Y; obviously doesn't know what runway he is using and needs additional training. How does a 182 driver not know which end of the runway is in use? Guys like that are dangerous.
Pilot reported a near mid air collision with an aircraft using the opposing runway without communicating their intentions correctly.