As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLATS WOULD NOT RETRACT FULLY AFTER TAKEOFF AND SLAT DISAGREEMENT LIGHT ILLUMINATED. RECYCLED SLATS TWICE WITH NO HELP. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. FOUND RIGHT WING FUELING PANEL DOOR JAMMED INTO SLAT. REPLACED DAMAGED LATCH ON FUEL PANEL AND SECURED DOOR. SLATS RETRACTED NORMALLY ON OPERATIONAL CHECK. AIRCRAFT RETURNED TO SERVICE.