On 21 July, Johnson shared in the destruction of another Bf 109 with Pilot Officer Heppell. Johnson's wingman disappeared during the battle. Sergeant Mabbet was mortally wounded but made a wheels-up landing near St Omer. Impressed with his skilful flying while badly wounded, the Germans buried him with full honours. On 23 July, Johnson damaged another Bf 109. During this battle Adolf Galland, "Geschwaderkommodore" (Wing Commander) of JG 26 was wounded; his life was saved by a recently installed armour plate behind his head.