As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4720 - DURING CLIMB-OUT OF MTY TO ATL, FLAPS RETRACTED ON SCHEDULED. THEN, AT APPROXIMATELY 5000 FEET, THE CAPTAIN RECEIVED A 'FLAPS FAIL' CAUTION MESSAGE. THE FLAPS WERE VERIFIED AT ZERO DEGREES. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT MADE AN UNEVENTFUL LANDING IN ATL. MAINTENANCE REMOVED AND REPLACED THE RIGHT BRAKE AND POSITION SENSOR UNIT. (M)