As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON DOWNWIND, RECEIVED A SLATS FAIL EICAS CAUTION MESSAGE WHEN THE FLAP SELECTOR WAS SELECTED FROM 0 TO 1. THE F/O WAS THE PM AND PERFORMED THE ABNORMAL PROCEDURE CHECKLIST FOR A SLATS FAIL INDICATION. THE PROCEDURE DID NOT CORRECT THE ANOMALY. AN EMERGENCY WAS DECLARED. THE LANDING WAS ON APPROACH SPEED, NO OTHER ANOMALIES WERE APPARENT.