As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED. FLIGHT RETURNED TO DEPARTURE DUE TO A SLAT DISAGREE. RETRACTED FLAPS, GAUGE INDICATED UP BUT THE LEADING EDGE FLAPS TRANSIT LIGHT REMAINED ILLUMINATED. LANDING UNEVENTFUL. REMOVED AND REPLACED LE SLAT 2 OTBD SENSOR S996 AND LE SLAT 2 RETRACT SENSOR S1094 IAW WDM 27-81-12. OPS CHECKED GOOD. AIRCRAFT WAS GROUNDED.