As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURN TO DEPARTURE, DUE TO SLAT FAIL ON FLAP RETRACT, SPEED 210 KNOTS, ALT 2000'. CREW EXECUTED QRH AND THE SLAT FAIL CAME BACK GOING FROM 1 TO 0. FLAPS/SLATS EXTENDED NORMALLY FOR LANDING AND FLAPS/SLATS RETRACTED NORMALLY AFTER LANDING. FOUND FAULT CODE 27811021ACE IAW FIM 27-81-00-810-802-A. FOUND OTBD RT SLAT ACTUATOR (8 RT) TORQUE LIMITER TRIPPED. R & R RT NR 8 SLAT ACTUATOR IAW AMM 27-81-01. ALL MECHANICAL AND ELECTRICAL RIGS OK. OK FOR SERVICE AT THIS TIME ALL, OPS CHECKS GOOD.