Interesting, thank you.
By chance, I shall be passing Higgins Mountain tomorrow.
Ten days later, and about 60 miles north, another Mosquito crashed.
http://www.bedequemuseum.ca/bedeques-av ... ashes.html
I wrote this piece.
My guess is that the crash was due to disorientation on entering the low cloud base after take-off. The aircraft was diverted into Summerside with a minor hydraulic problem, approximately halfway along the first leg of its transatlantic ferry.
After the problem was fixed in short order, the aircraft took off again, probably without refueling. The acceleration of the lightly loaded Mossie was probably outside the experience of the young pilot, and contributed to his disorientation. I have been in a similar situation myself.