What was found
WHILE AT CRUISE FL300, FLAP FAIL CAUTION MESSAGE APPEARED WITH NO INPUT ON FLAP HANDLE. RAN QRH. TOUCHDOWN BELOW MAX LANDING WEIGHT. BRAKE TEMP MAX WERE 5 RT OUTBOARD BRAKE. FLAP FAIL REMAINED DISPLAYED ON TAXI TO GATE. PERFORMED FLAP RESET PROCEDURE, IAW AWAC SUPP 98-18I BOX 12. FLAPS REST. PLACARDED AND PLACED ON MEL. AIRCRAFT REMOVED FROM SERVICE. REF W/O 299528 WC NR 2 & 3 FOR CORRECTIVE ACTION REMOVED PLACARD AND REMOVED FROM MEL. WC NR 2 TROUBLESHOOT, IAW FIM SUPP 98-0181, FAULT LOG MOST PROBABLE IS RT BPSU SEE MX WORD CARD NR 3 FOR CORRECTIVE ACTION. RECORD OF FECU FAULT LOG INCLUDED IN PACKAGE. WC NR 3 R & R RT FLAP BPSU, IAW AMM 27. OPERATIONS CHECK GOOD.