As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMA - DURING TAKEOFF, CAPT ATTITUDE GYRO FLAG AND INSTRUMENT COMPARATOR WARNING CAME ON WHEN THRUST LEVERS ADVANCED FOR TAKEOFF. THE TAKEOFF WAS REJECTED. REMOVED AND REPLACED VERTICAL GRYO IAW M/M 34-25-1. REMOVED AND REPLACED FLIGHT DIRECTOR INDICATOR IAW M/M 34-23-01, OPS CHECK NORMAL.