Narrative:

We were the fourth plane in a row to land on runway xx at ZZZ. I had my landing lights on for visibility. Aircraft Y was holding short. I made radio calls on the 45; downwind; base; final and short final. When I was within a few hundred horizontal feet and about 75 feet above touchdown; aircraft Y pulled onto the runway without making a radio call. I radioed for him to stop but he kept going. I raised my landing gear and commenced an emergency climb. During the procedure I estimate that I passed 25 feet over him. I made several more radio calls on the CTAF but never got a response. He continued his takeoff and was behind me as I climbed. Aircraft Y apparently was not listening to the radio even though three planes landed immediately before me. Even more serious is that he apparently never even looked to see if a plane was on final although the weather was perfectly clear and I had my landing lights on. This came very close to being a disaster.

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Original NASA ASRS Text

Title: TB-20 single pilot reported an NMAC event during landing with a non-reporting aircraft that abruptly initiated a takeoff.

Narrative: We were the fourth plane in a row to land on RWY XX at ZZZ. I had my landing lights on for visibility. Aircraft Y was holding short. I made radio calls on the 45; downwind; base; final and short final. When I was within a few hundred horizontal feet and about 75 feet above touchdown; Aircraft Y pulled onto the runway without making a radio call. I radioed for him to stop but he kept going. I raised my landing gear and commenced an emergency climb. During the procedure I estimate that I passed 25 feet over him. I made several more radio calls on the CTAF but never got a response. He continued his takeoff and was behind me as I climbed. Aircraft Y apparently was not listening to the radio even though three planes landed immediately before me. Even more serious is that he apparently never even looked to see if a plane was on final although the weather was perfectly clear and I had my landing lights on. This came very close to being a disaster.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.