What was found
EMERGENCY DECLARED, EICAS MSG T/E FLAP DISAGREE. RAN CHECKLIST AND LANDED, FLAPS 20' V, REF WAS 158 USED ALT FLAP SW. T/S IAW FIM 27-51-00-815-810. T/E FLAP OPS CK NORMAL AND COULD NOT DUPLICATE. OPS CK IAW AMM 27-51-00. ALSO, PERFORMED VISUAL INSPECTION FOR FLAP SYS. NO DEFECTS NOTED. OK FOR SERVICE.