As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON TAKEOFF, NR 1 GENERATOR DROPPED OFF-LINE WHEN POWER APPLIED FOR TAKEOFF. TAKEOFF REJECTED DUE NR 2 GEN US AND ON MEL, APU TOOK OVER POWER ELECTRONICS. NR 1 GENERATOR ON BUS WHEN RESET. NR 1 ENGINE RUN-UP CARRIED OUT AND TAKEOFF POWER WAS COMPLETED, NR 1 GENERATOR DROPPED OFF THE BUS AND CSD LOW OIL PRESSURE LIGHT CAME ON, CSD DISCONNECTED. NR 1 CSD REPLACED.