As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ATTEMPTING TO TAKEOFF, THE CREW RECEIVED A RIGHT PACK FAIL MESSAGE. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED THE AIRCRAFT BUT COULD NOT DUPLICATE THE PROBLEM. THE AIRCRAFT WAS RELEASED FOR ANOTHER TAKEOFF AND DEPARTED WITHOUT FURTHER INCIDENT.