 He would score once in July, on the 20th.On 27 July he was shot down in flames by Captain Clive W. Warman of No 23 Squadron, but escaped uninjured.Warman's machine gun fire set Kroll's airplane's carburettor on fire, but Kroll killed the engine to starve the flames, tore off his oily goggles so he could still see, and landed dead stick, trailing telephone wires.