As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) COMPLETE POWER INTERRUPTION ON TAKE OFF ROLL COMPLETED INTERRUPTION DURING 1 TO 3 SEC. WAS CAUSED BY RELAY DURING POWER TRANSFER. AIRCRAFT CAME BACK TO THE GATE. MAINTENANCE FOUND LT GENERATOR FREQUENCY TO LOW. AIRCRAFT WAS DISPATCHED AS IAW MEL 24-1. THE LT GENERATOR WAS REPLACED THE DAY AFTER.