As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI INTO GATE, THE NR 2 THRUST REVERSER DEPLOYED UNCOMMANDED, WOULD NOT STOW. DFDR DATA WAS REVIEWED AND THE DATA SHOWED THAT THE REVERSER DID NOT STOW AFTER LANDING. THE THROTTLE MICROSWITCH PACK WAS FOUND WORN WHICH PREVENTED THE THRUST REVERSER FROM STOWING AFTER LANDING. MICROSWITCH PACK WAS REPLACED IAW DC-9 MM. OPS CHECKED GOOD.