As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, JUST AFTER TOGA AND BEFORE STANDARD PWR WAS SET NR 2 THRUST REVERSER UNLOCK LIGHT ILLUMINATED ON LEFT ECAM SCREEN. ABORTED T/O COMPLIED WITH QRH, RETURNED TO GATE. MAINTENANCE PROCEDURE PERFORMED IAW MEL 78-30-01-C. MANUALLY CLOSED PRSV AND DISCONNECTED BOTH SIDES MASTER ACTUATORS. THRUST REVERSER RIGGED AND RE-ACTIVATED IAW MM 71-13-03 FEDEX W/O 25086