The first sortie was on 24. May 1944. The US bombers attacked Wien and crossed Hungarian territory. Only the 101/1. squadron flown a sortie with 13 planes. They attacked the bombers and claimed five of them and additionally a Mustang for one killed, three wounded and seven Bf 109. There were some additional sortie, but until 14. June, the group could not encounter to the allies. On 14. June 31 Hungarian Bf 109 attacked 15 P-38 of 14. FG, 49. FS. The Pumas claimed five P-38 with one loss (JG 302 also claimed one P-38). The further actions were mostly successful, but the losses were heavy. E.g. on 16. June the group claimed seven P-38 (Sergeant Mátyás Lőrinc claimed alone three P-38 and the kills were confirmed although only one P-38 was downed.) and one P-47, but lost four pilots.
