I find it surprising that ATC told the next Dash 8 that a company Dash had 'gone down'
Mungo Man
Despite numerous reports of icing, only one aircraft requested an 'unrestricted' climb, and one aircraft asked for an 'unrestricted' descent.
After the confirmation of the mishap, the Air Traffic Controller was justifiable concerned with the possibilty of a fatal combination of a Q400 and ice.
Assuming the following Colgan aircraft was a Q400, I believe the controller felt obliged to pass on the information!
He was no doubt torn between his duty of care, and the knowledge of the effect his transmission would have on that crew.
A difficult night for many people.