As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT ON DESCENT FOR APPROACH THEY RECEIVED A CAUTION MESSAGE ON EICAS FOR "SLATS FAIL" WHEN SELECTING SLATS/FLAPS 1 DEGREE. DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT AND REMOVED FROM SERVICE. PERFORMED SLAT TRIP INSPECTION IAW AMM 27-81-09-610-803. LEFT OTBD FOUND TRIPPED. INSPECTED FOR WATER IAW ETN-CR-27-084/SL 27-80. NO WATER NOTED. OPS CHECKED GOOD IAW AMM 27-50-00-701-801. THE ACFT WAS RETURNED TO SERVICE.