As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PASSING THROUGH 2,500 FT MASTER WARNING RT THRUST REVERSER UNLOCKED. IMMEDIATELY REDUCED THROTTLES MESSAGE CLEARED. CONTINUED ON. WHEN PASSING THROUGH 4000 FT SAME WARNING AGAIN. RETURN TO BLOCKS. NORMAL APPROACH AND LANDING MADE. MAINTENANCE INSPECTION REVEILED FAULTY THRUST REVERSER INTERNAL LOCK . BOTH ACTUATORS REPLACED