As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 LEADING EDGE SLAT SHOWED UNSAFE INFLIGHT. COULD SEE NR 4 SLAT DROOPING ABOUT ONE INCH. AIRCRAFT MADE AN UNEVENTFUL LANDING. INSPECTED AND PERFORMED OPERATIONAL CHECK ON FLAP AND LEADING EDGE DEVICES SYSTEM PER BOEING MM. OPS CH OK.