14Sqn, Eritrea, East Africa.
Blenheim Mk IV T-2061, during an attack on Ottumlo aerodrome was shot down by anti-aircraft fire over Massawa, Eritrea, East Africa. Hit in an engine, the aircraft force landed north of Massawa.
Killed: Cheyne died of wounds four days later on 1940-09-25.
POWs: F/Lt Norman George Birks RAF POW camp not listed. Sergeant John P Gillhespy RAF POW Stalag Luft L3 Sagan and Belaria.