These sites have some information you maybe able to use
http://aviation-safety.net/wikibase/wiki.php?id=129334
http://www.planedesire.com/aircraft/desire/N92484/details.html
http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=43759&key=0
http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=21890
http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=21900
Hope some of this information helps: