As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DEPARTURE CLIMB UPON FLAP RETRACTION (2 DEGREES TO UP), THE NR 7 LEADING EDGE SLAT REMAINED EXTENDED. RECYCLED FLAPS TO NO AVAIL. RETURNED TO DTW WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE NR 7 LEADING EDGE SLAT INBOARD TRACK BEARING SEIZED. REPLACED BEARING. OPERATIONAL CHECK NORMAL.