As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNSCHEDULED STAB TRIM EICAS LIGHT ILLUMINATED ON T/O ROLL APPROX 40 KTS ABORTED, LIGHT WENT OUT AS WE TAXIED OFF R/WAY PERFORMED UNSCHEDULED STAB TRIM TEST PER FIM 27-09-00 PG 167 STEPS 1 & 2 FAULT BALLS RESET, RAN TEST NO FAULTS NOTED. ACFT READY FOR SERVICE.