As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE MANUAL LIGHT ILLUMINATED ON TAKEOFF ROLL WITH ASSOCIATED ROLL BACK. CREW ABORTED TAKEOFF WHEN MANUAL CAUTION LIGHT ILLUMINATED. CREW AND MAINTENANCE COMPLIED WITH TAKEOFF POWER ENGINE RUNS WITH NR 1 ECU SELECTED TO NORM AND ECU CIRCUIT BREAKER RESET. OPS CHECKED NORMAL.