As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(PIREP) WHILE ADVANCING POWER LEVERS FOR TAKEOFF, CONFIGURATION HORN SOUNDED. AIRCRAFT EXITED THE RUNWAY AND RECYCLED ALL SWITCHES FOR TAKEOFF. RECYCLING THE SWITCHES REMEDIED THE PROBLEM, TAXIED BACK FOR TAKEOFF AND COMPLETED THE FLIGHT WITHOUT INCIDENT.