As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON T/O ROLL (BELOW 80 KTS) AMBER NR 1 ENG REVERSER UNLOCK LIGHT ILLUM. REJECTED T/O AND RETURNED TO GATE FOR INSPECTION. PERFORMED REJECTION TAKEOFF CHECKLIST. FOUND RT LOWER FLEX CABLE HOUSING TWISTED AND BINDING. REMOVED AND REPLACED FLEX CABLE PER AMM 78-31-12 PG 201-203. T/R OPS CK GOOD ON ENG RUN.