What was found
CREW REPORTED ON TAKEOFF ROLL, TOP ESCAPE HATCH OPENED, TAKEOFF ABORTED. SECURED TOP ESCAPE HATCH.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED ON TAKEOFF ROLL, TOP ESCAPE HATCH OPENED, TAKEOFF ABORTED. SECURED TOP ESCAPE HATCH.