Aircraft Equipment Problem Critical
Flight Crew Executed Go Around / Missed Approach
Aircraft
On a visual approach we were configuring the aircraft for landing. Slats were already extended to Slats 15. Captain called for Flaps 15. The slat/flap handle would not move out of the Slat 15 detent to extend the flaps to the 15 position. The slat/flap handle was cycled; but it would not extend past the Slat 15 position. A go-around was initiated and we complied with the Tower and Departure Control instructions. Departure Control was advised we needed to stay in the area to run some checklists. We ran and complied with the QRH and recalculated our airspeed and landing distance for a no flap landing. We advised Approach Control of the situation. We requested the longer runway and were told to expect [another runway] to accommodate the higher approach speed and longer landing distance. We advised Operations of the situation as well to give Maintenance a heads up. We were vectored back and landed without incident and taxied to the ramp.  We consulted with Maintenance about the problem after arrival to the gate. I followed up online to see the maintenance history of the aircraft as of today. Maintenance could not get the slat/flap handle to operate normally as well. The slat/flap handle unit was replaced according to the history and the aircraft was returned to service.
A300 First Officer reported flap handle would not move beyond the 'Slat 15' position. Flight crew ran the procedure and landed with zero flaps.