What was found
WHILE EN ROUTE GOT FLAP WARNING ASYMMETRY ASSOCIATED WITH CONTROL FAULT AND ADVANCED SWS. FLAP PAIR LIGHT BARS ON OUTBOARD PAIR SHOW ASYMMETRY WARNING, ONLY ONE LIGHT SEGMENT. THERE WERE NO CONTROL PROBLEMS OR ROLL TENDENCIES. PERFORMED SYSTEM SELF-DIAG TEST USING VERSION II ANNUNCIATOR FOUND OUTBOARD EXTEND SOLENOID TO BE STUCK OPEN. CHECKED ACTUATORS IAW 27-50-00. NO FAULTS FOUND. REMOVED AND REPLACED FCU IAW MM 27-50-06. CLEARED FAULT. OPS CHECK GOOD. P/N: 347200-1001, S/N OFF: 0222.