As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ADVANCING THROTTLES TO TAKEOFF POWER, THE NR 2 ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE LOCKED OUT THE NR 2 THRUST REVERSER AND PLACED IT ON MEL 78-1A. AIRCRAFT THEN DEPARTED WITHOUT INCIDENT. SUBSEQUENT MAINTENANCE CLEARED THE MEL BY CORRECTING CABLE RIGGING.