Shortland Islands
Throughout the patrol, "S-41"’s gyrocompass had given continuous trouble, and her periscope had proven faulty. Repairs were made at Fremantle and at Brisbane, Queensland; and, on 9 May, she departed the latter port for the Solomon Islands. Encountering poor weather during the patrol, she operated in the Shortland Islands and Treasury Islands through the end of the month and returned to Brisbane on 6 June.