That report has been around for seven years. Do you have a particular motivation in posting it now?. .It states quite clearly that efforts by RHC and the FAA to increase pilot awareness had had the desired effect, and that no design fault was apparent in the helicopter.. .It also, incidentally, pours a good deal of cold water on the Georgia Tech mathematical model that you keep wittering on about.. .Face it, Lu, you're on a loser.