As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF AT 90 KNOTS DUE TO RT THRUST REVERSER UNLOCK LIGHT ILLUMINATED. ACFT RETURNED SAFELY TO GATE WITH NO FURTHER INCIDENT. ACCOMPLISHED HIGH ENERGY STOP INSPECTION WITH NO DEFECTS NOTED. REPLACED UPPER & LOWER THRUST REVERSER SWITCH. PERFORMED OPERATIONAL CHECK IAW AMM 78-32-03. SYS CHECKED NORMAL.