As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4056 WAS ON THE RUNWAY READY FOR TAKEOFF AND RECEIVED A LEFT HAND PACK OVERHEAT MESSAGE AND ABORTED TAKEOFF. MAINTENANCE INSPECTED AND RESET THE L2 CIRCUIT BREAKER IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.