As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NORMAL LANDING AND TAXI WHILE APPROACHING GATE. APU STARTED, FLT ATTENDANT REPORTED CABIN FILLING WITH SMOKE. APU/PNEUMATICS SHUTDOWN. CABIN DOORS AND EMERGENCY EXITS OPENED TO VENT. SMOKE DISSIPATED. L2 DOOR SLIDE WAS INADVERTANTLY DEPLOYED. MTC DISCOVERED THE LEFT THRUST REVERSER ACCUMULATOR HYD LINE B-NUT LOOSE AND SQUIRTING HYD FLUID. TIGHTENED SAME, LEAK CHECKS GOOD. ALL EMERGENCY EQUIPMENT OPERATED NORMALLY.