The four-page NTSB report offered no explanations or conclusions about the cause of the crash.
It also does not identify who was at the controls, noting only that a private pilot and a pilot-rated passenger were occupying the cockpit at the time of the crash. Both Davis and Caves were licensed pilots.
A final report on the board's determination of the probable cause is not expected for months.
The airplane had departed Richard Lloyd Jones Jr. Airport in Tulsa about 2 p.m. the day of the crash.
The report released Friday noted that as the jet made its first emergency approach to South Bend Regional Airport at 4:19 p.m., the pilot was told to go around after the tower controller saw that only the nose landing gear was extended.
The airplane climbed, turned and made another approach, again with only the nose gear extended.
Several witnesses reported seeing the airplane bounce several times on the runway before it entered a climbing right-hand turn then plunged into the nearby neighborhood of tidy, mostly one-story homes.
The plane struck three houses, lodging finally in the residence of Diana McKeown, 62, who spent a week in the hospital after the crash. Both Rodgers and May also have been released from the South Bend hospital where they were being treated.