Simon Glancey has submitted the following:
Flight Sgt. Coates was killed when Avro Lancaster III JB672 LE-F of 630 Squadron was lost on a mission to Duisburg. The Lancaster was shot down near Kilder, about 15 miles E.S.E. of Arnhem, by a Luftwaffe night fighter, with the loss of all seven crew.
Royal Air Force Bomber Command Losses of the Second World War: 1944; W.R. Chorley; 1997; Midland Counties Publications; ISBN 0 904597 91 1, page 233
Tony Hibberd adds:
Lancaster JB672 LE-F had departed East Kirkby at 2251 for Ops Duisburg
It was intercepted at 5500M near Deventer by a Night-Fighter captained by Nacht-Jagd “Experten” Hptm Martin Drewes (Stab III/NJG1) and shot down at 0050 for his 39th Abschuss
Nacht Jagd War Diaries Vol 2 Dr Theo Boiten