Extensive but not necesarily complete Dragon list here:
http://www.ajjcollection.co.uk/d8.htm
The Birmingham Airport book seems to include all Midlands accidents associated with the airport, but nothing in your time frame. I dont know what radius ATC worked to in those days, 30 miles is a resonable guess from when I worked in ATC (long time ago) but BHX is a "Safeguard" airfield nowadays so may well have been involved in Emergency RT calls in those days which could mean the accident happening much further away, especially if the call went out at height.
Did Airlines in those days not use airline callsigns? using "VL" would suggest something a lot smaller, perhaps a charter from a light aviation company.