As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 7723 IAD-MSY - AFTER SELECTING FLAPS DOWN A FLAP FAIL MESSAGE APPEARED ON EICAS AND THE FLAPS WOULD NOT MOVE. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED UNEVENTFULLY. THE AIRCRAFT WAS FERRIED TO IND FOR MAINTENANCE. MAINTENANCE TROUBLESHOT THE AIRCRAFT AND REMOVED AND REPLACED THE LEFT HAND OUTBOARD FLAP ACTUATOR. OPS CHECK GOOD.