What was found
ON APPROACH, CREW HAD THE TRAILING EDGE FLAPS REMAIN AT 15 WITH FLAP LEVER SELECTED AT 25, SPEED APPROXIMATELY 160 KNOTS. CREW EXECUTED GO-AROUND, DECLARED EMERGENCY, AND PERFORMED FIM 27-51-00-810-836 AND FIM 27-51-00-810-801. OPERATED TRAILING EDGE FLAP SYSTEM SEVERAL TIMES IAW AMM 27-51-00. AIRCRAFT WAS GROUNDED. MAINTENANCE INSPECTED AND CHECKED TRAILING EDGE FLAPS AND LEADING EDGE SLATS FULLY EXTENDED FOR CONDITION AND SECURITY. NO FAULTS NOTED AND PERFORMED SATISFACTORY OPS CHECK.