Peter....I would suggest the damage to the sixth window back, the sponson strut and at least one support tube hanging off, and the sponson sat off to the side are a bit of a hint. Also looks like the tail rotor is at an odd angle/damaged pitch change spider. I have jacked up a 61 in a strange place but I don't think what looks like a building site would be a 1st choice location for routine maintenance.
Phil,, no idea about the circumstances though sorry.
3D CAM