As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAN INFLIGHT T54/21SEP. PRIOR TO FLAP EXTENSION LEADING EDGE ASYMMETRY AND EICAS MSG ILLUMINATED. LANDED WITHOUT INCIDENT MAN WITH 20 DEGREE FLAPS NO SLATS. CLEANED NR 10 SLAT SENSOR AND REPLACED MAIN BATTERY CHARGER. SYSTEM GROUND CHECKED NORMAL OPS.