What was found
DURING APPROACH, WHEN THE FLAPS WERE SELECTED TO 30, REMAINED STUCK AT BETWEEN 20 & 25 DEGREES WITH A TRAILING EDGE FLAP DISAGREE LIGHT ILLUMINATED. A GO AROUND WAS ACCOMPLISHED AND QRH ACCOMPLISHED AND A EMERGENCY DECLARED. A NORMAL LANDING ACCOMPLISHED, ON ENGINE SHUTDOWN FLAP LEVER REMAIN IN 30 DEGREES AND FLAPS EXTENDED TO 30 AFTER ENGINE STOPPED. THE T/E FLAP DISAGREE LIGHT WAS NO LONGER ILLUMINATED. COMPLIED WITH NO GO ODI PREVENTION PRIOR TO FLIGHT T/S. ACCOMPLISHED BIT ON FSEU 1, 2, AND 3. INTERMITTENT MESSAGE 305, FLAP DISAGREE . CLEARED AND RESET. RAN FLAPS L/E & T/E FOR 5 CYCLES, NO FAULTS NOTED, NO MESSAGE ON FSEU AFTER FLAP TEST.