 Plagis returned to action in September 1943 , when he was appointed commanding officer of No. 64 Squadron , then flying Spitfire Mk VCs over northern France from RAF Coltishall in Norfolk . Plagis downed a Bf 109 over France on 24 September 1943 , then a Focke @-@ Wulf Fw 190 on 23 November , and formally received the rank of flight lieutenant on 8 December 1943 . 
