As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKEOFF ROLL AT SPEED +90 KTS THE CREW REPORTED RT REVERSE UNLOCK LIGHT ILLUMUNATED ON THRUST REVERSER PANEL. THE TAKEOFF WAS REJECTED AND AND THRUST REVERSER APPLIED. UPON T/R RETRACTION THE UNLOCK LIGHT EXTINGUISHED. ENGINE RUN PERFORMED ON GROUND HAS NOT REVEALED ANY ABNORMAL INDICATIONS. THE TROUBLESHOOTING IS STILL IN PROGRESS WITH NO FINDINGS REPORTED SO FAR.