As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IRREGULARITY REPORTED - ON TAKEOFF ROLL AT APPROX 80 KNOTS CREW REPORT MASTER WARNING FLASHED WITH NO ASSOCIATED EICAS MSGS. CREW ABORTED TAKEOFF. INSTRUCTED CREW TO CHECK MASTER WARNING SWITCHES AND CMC FOR ANY RELATED TIME STAMP FAILURE WITH NO RECORDED FAULTS. CREW RE-CHECK CONFIG AND REPORT NO ISSUES AND NO FURTHER MASTER WARNINGS OR EICAS MSG.