100 Squadron had been based at RAF Waltham near Grimsby since 15 Dec 1942 and was equipped with the Avro Lancasters.
Early on the morning of 5th March 1943, Lancaster Mk III ED-549 HW-S based at RAF Waltham crashed in the Vale of Belvoir, approximately half a kilometre from the village of Plungar, close then to RAF Langer, where it was trying to land, with a loss of 6 crew.
There was one survivor Mid-Upper Air Gunner Sergeant D S Davies.
The crew members who died in the crash were:
Flight Sergeant G R Avey, RCAF Pilot
Flight Sergeant R R Landry RCAF
Sergeant B T Hallett RAF
Sergeant A H Spence RAF
Sergeant G D Cumberbatch (From Barbados) RAF
Sergeant J Robinson RAF
Three of the crew were buried in St Swithun churchyard, Long Bennington, Lincolnshire on the 10th March 1945 they are;
Flight Sergeant G R Avey
Flight Sergeant R R Landry
Sergeant G D Cumberbatch
100 Squadron RAF is based today (2017) at RAF Leeming. The motto "Sarang tebuan jangan dijolok" means 'Never stir up a hornet's nest'.