Despite corrective measures, the Dr.I continued to suffer from wing failures. On 3 February 1918, "Leutnant" Hans Joachim Wolff of "Jasta" 11 successfully landed after suffering a failure of the upper wing leading edge and ribs. On 18 March 1918, Lothar von Richthofen, "Staffelführer" of "Jasta" 11, suffered a failure of the upper wing leading edge during combat with Sopwith Camels of No. 73 Squadron and Bristol F.2Bs of No. 62 Squadron. Richthofen was seriously injured in the ensuing crash landing.