 The first confirmed destruction of an enemy aircraft by an Me 262 pilot occurred on 8 August 1944, when "Leutnant" Joachim Weber shot down another Mosquito PR XVI from No.540 Squadron, over Ohlstadt, in Bavaria.On 15 August 1944, Schreiber took off to intercept a Mosquito PR XVI ("NS520") of 60 Squadron, South African Air Force crewed by Captain S. Pienaar and Lieutenant A. Lockhart-Ross, who were tasked with photographing airfields in the Black Forest area.