As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AS CREW WAS MOVING FLAPS FROM 10 TO 0 DEGREES, RECEIVED A FLAP POWER CAUTION MESSAGE. RAN QRH AND FLAPS WERE STUCK AT 4 DEGREES. ELECTED TO CONTINUE TO DESTINATION AND DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT AND TAXIED TO GATE. RESET POWER AND CHECKED FLAPS IAW AMM WITH NO DEFECTS NOTED. ACFT IS GOOD FOR SERVICE.