Source: Leicestershire War Memorials Project.
The following information was kindly submitted to the project by M Gould in 2015:

"Details of the crash: http://www.peakdistrictaircrashes.co.uk/pages/wales/walesn9855.htm

Sergeant Douglas John Roberts - Background to accident causing his death An Avro Anson Mk.I N9855 of No.3 (Observer) Advanced Flying Unit crashed on Pen yr Ole Wen in the Carneddau on the 8th November 1943.
Crew / Passengers Rank
Ernest Andrew Hoagg Sergeant RCAF Pilot Killed
John Hedgley Lewis Sergeant RAAF Navigator Killed William Gavin Sergeant Bomb Aimer Killed Leslie John Hill Sergeant Wireless Operator / Air Gunner Killed Douglas John Roberts Sergeant Wireless Operator / Air Gunner Killed

The aircraft and crew were stationed at RAF Halfpenny Green to the south west of Wolverhampton. During the evening of the 8th November 1943 to crew of five took off for a night navigation exercise. The route was to have covered ~320 miles passing over of close to the following points Base - Rhyl - Conwy - Douglas - Maughold Head - Chetton - Base. A short way into the flight the crew received a QDM from RAF Tilstock of 050o with the location of the aircraft being assumed to be in the area of 4 miles NW of Shawbury roughly on course for Rhyl. It was next plotted by the Royal Observer Corps on a route that appeared to be a direct track from Wrexham to Conwy.

A direct track from the Wrexham area to Conwy would not normally have taken an aircraft into Snowdonia, but on the night there was a 15 mph wind blowing from west north west which the Court of Inquiry remarked on as "if correction for drift was not taken the aircraft would drift south of the second turning point"

At around 20:30 the ROC observed a fire near Carnedd Dafydd, shortly before this the aircraft while flying in a north westerly direction had impacted the upper slopes of Pen yr Ole Wen. The aircraft's engines had been torn off and rolled almost 1000 feet down the mountain and the fuel tanks had ruptured with their contents igniting. The fuselage was destroyed but was not burnt by the fire.




This has been uploaded by Mike Gould, Kirby Muxloe, Local History Group, who would be interested in making contact with any member of the family of Sergeant Roberts."