As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLAT FAIL EICAS MESSAGE AFTER SELECTING FLAPS 1. SLAT POSITION SHOWED LOCKED SOMEWHERE BETWEEN THE 0 AND 1 POSITION WITH - DISPLAYED IN THE SLAT POSITION BOX. FURTHER MOVEMENT OF FLAP HANDLE HAD NO EFFECT ON SLAT POSITION. MESSAGE OCCURED AROUND 210 KTS DURING FIRST MOVEMENT OF HANDLE. REMOVED AND REPLACED RT OLD STANDARD SLAT HARNESSES (W611) AND (W612) PER EO E2707138 PART II, CLEARED SLAT FAIL MESSAGE IAW 27-83-00. ALL EICAS MSG CLEAR.