As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 859 - DURING TAKEOFF, CREW RECEIVED AFT CARGO DOOR CLASS 1 MAINTENANCE MESSAGE. ABORTED TAKEOFF AT 60 KNOTS. RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE RE-SECURED AFT CARGO DOOR HANDLE, FOUND HANDLE NOT COMPLETELY IN DETENT. OPERATIONAL CHECKS GOOD.