What appears to be a practice or demonstration drop by a Brazilian Embraer EMB-202A Ipanema ended with the wings folding and the pilot surviving with serious, but not life-threatening, injuries. The Ipanema is an aerial application plane but this aircraft appears to dump its load rather than spray it.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/wings-fold-on-ag-plane