Hmm, many years ago during my ab initio training in a H 300 with an instructor, one of the skid oleos let go, I guess it may have been both, on one side, allowing the skid to swing down. Long time ago now but I do remember getting out of the thing and holding the skid back in position while the instructor landed the machine. Should of turned me off of helicopters right then I suppose, but didn't.
R.I.P. to the victims.