 With approximately a minute left in the mapping run, "Old 666" faced a coordinated attack by eight A6M3 Model 22 Zero fighters from 251 Kōkūtai, as well as an unidentified twin-engined fighter.The ensuing attack mortally wounded bombardier Sarnoski, who struggled back to his gun to drive off a second Zero after being blown from his position by a 20 mm cannon shell from the first.Another of a total of four 20 mm shells destroyed the pilot's side of the instrument panel and broke Zeamer's left leg above and below the knee and leaving a large hole in his left thigh.