As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4980 - FLAPS FAIL CAUTION ON APPROACH, APPROX 160 KTS, FLAPS AT 45 DEGREES. LANDED WITHOUT INCIDENT. FECU AND LEFT BPSU FAILED. FECU WENT INTO WAIT MODE AND WOULD NOT PROVIDE FAULT LOG. FAULT LOG CAME FROM REPLACEMENT FECU. REPLACED FECU. NO FURTHER DEFECTS NOTED.