Narrative:

I was flying and saw my formation buddy's plane. I joined on his wing then he joined on mine. We flew together for about a minute or two. Later [I found] out from my friend that was not his plane and he was not flying that day. The plane we joined is the same model citabria and exact paint scheme with the same tail markings. Both planes are completely identical and I mistakenly joined on the wrong plane.

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Original NASA ASRS Text

Title: DA-20 pilot reported flying formation with an aircraft that was unaware of his intentions.

Narrative: I was flying and saw my formation buddy's plane. I joined on his wing then he joined on mine. We flew together for about a minute or two. Later [I found] out from my friend that was not his plane and he was not flying that day. The plane we joined is the same model Citabria and exact paint scheme with the same tail markings. Both planes are completely identical and I mistakenly joined on the wrong plane.

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.