From the Diary of the Seekriegsleitung (naval ops. staff) for 25 June 1944: On the morning of the 25th, while on a sortie SE Trieste to test dockyard repairs, TA 22 was repeatedly attacked by 8–10 fighter-bombers, suffering two bomb hits and heavy strafing. The boat sailed into the San Marco dock with a severe list. One aircraft was reported definitely shot down and another probably. (My translation)