Complex sentence: When he dropped it for the first time from above the bomber formation on 22 March 1943, he reported breaking the wing off one of the bombers although the only B-17 lost that day was to a Fw 190 of III./JG 1.
Split into simpler sentences: When he dropped it for the first time from above the bomber formation on 22 March 1943, he reported breaking off the wing of one of the bombers. Actually the only B-17 lost that day was to a Fw 190 of III./JG 1.