As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLATS FAIL ON APPROACH. EMERGENCY DECLARED. SLAT FAIL EICAS WHEN CONFIGURING TO LAND. FAILED IN 3 POSITIONS. RAN QRH AND DID NON-NORMAL LANDING PER QRH. SMOOTH LANDING. T/S FAULT CODE 27811013ACE. FIM TASK 27-81-00-810-805-A BLOCK 1 CLEARED INHIBITS FOUND TO BE TRANSITORY CONDITION OF SLAT/FLAP ACTUATOR CONTROL ELECTRONIC UNIT 1 AND 2 PERFORMED OPERATIONAL TEST OF THE SLAT SYSTEM IAW ERJ-175 AMM 27-80-00 OPS CHECK GOOD NO MESSAGES NOTED