As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF AML 4604436-1, SLAT FAIL MESSAGE ON EICAS DURING CRUISE AND ON LANDING. DECLARED EMERGENCY. -C/A-SLEIGHTED FLAP/SLAT ELECTRONIC CONTROL UNIT FOR T/S PURPOSES. DID NOT FIX PROBLEM. REINSTALLED FLAP/SLAT ELECTRONIC CONTROL UNIT AS REQUIRED IAW EMB 175 AMM 27-53-02. OPS CHECK GOOD. SEE ITEM 3.