Took off from Kabrit, Egypt at 20:20 in Wellington Mk Ic (Sqn code 'E' Bomber Command) on an operation to Tobruk Libya.
Aircraft was too high in the landing approach and Flight Sergeant Chalmers tried to go around but the aircraft stalled and crashed.
Killed: Warrant Officer Class 2 Robert Allan Arthur Chalmers RCAF R/78274 pilot KIA Heliopolis War Cemetery Egypt grave 2. D. 2. Sergeant Thomas Leslie Roberts RAF KIA Heliopolis War Cemetery grave 2. E. 2.
Flight Sergeant Chalmers had been wounded by a shell splinter on 1942-04-04 when Wellington X-9937 was hit by enemy anti-aircraft fire.
