As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: INBOARD SLAT SKEW SENSOR 6 INBOARD IS FAILED. DECESION MADE TO RETURN TO DFW, AIRCRAFT WAS NOT OVERWEIGHT AND NO EMERGENCY DECLARED. LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED M2789062 SLAT SKEW SENSOR (TRANSDUCER) 6 INBD IAW AMM 27-89-01.