As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POS INFLIGHT T1819/10 ON APPROACH LEADING EDGE FLAP ASYMMETRY EICAS MESSAGE. FLAPS JAMMED AT ONE DEGREE. USED ALTERNATE METHOD TO GET FLAPS DOWN TO 20. DECLARED EMERGENCY AND LANDED WITHOUT INCIDENT. ACCOMPLISHED BITE CHECK FSEU WITH NO FAULTS NOTED. SYSTEM GROUND CHECKED NORMAL OPERATION.