But he didn’t ground loop. He got blown over by a severe crosswind while taking off.
And when his right wingtip hit, he groublooped, then smacked the left wingtip, destroying the central spars.
A ground loop is when the wheels stay on the ground. They weren’t, the plane was off the ground. Patey doesn’t call it a ground loop, he says the plane was like a kite.
Here’s Patey describing the accident; https://www.youtube.com/watch?v=NfctWAoDXvs