As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4472 DURING THE DESCENT THE CREW REPORTED A FLAP FAILURE MESSAGE ON EICAS. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. TROUBLESHOT SYSTEM IAW FIM 27-51-00-810-816-A AND FOUND THE LEFT VELOCITY SENSOR TO BE BAD. REMOVED AND REPLACED THE LEFT VELOCITY SENSOR. OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.