As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: NUMBER 4 SLAT ON THE RIGHT SIDE SHOWED EXTENDED AND RETRACTED INTERMITTENTLY. LEADING EDGE FLAP TRANSIT LIGHT FLASHING AS WELL; AIRCRAFT LANDED SAFELY AT DFW. REMOVED AND REPLACED S175 LEADING EDGE FLAP 4 EXTEND SENSOR. ACCOMPLISHED ALL CHECKS GOOD. PER WDM 27-81-21 AND AMM 27-88-11.