What was found
ON APPROACH TO DEN, CREW ENCOUNTERED A FLAP PROBLEM. THERE WAS ALSO LOW LEVEL TURBULENCE REPORTED IN THE AREA WITH GUSTY SURFACE WINDS. AT FIRST THE FLAPS WERE SLIGHTLY SPLIT AND STUCK IN THE FLAPS 1 POSITION. CREW INITIATED A GO-AROUND. AS CREW PROCEEDED TO LINE UP FOR ANOTHER APPROACH WITH ALMOST NO FLAPS, DECLARED AN EMERGENCY AND THE EQUIPMENT RESPONDED. SHORTLY BEFORE TOUCHDOWN, THE FLAPS SUDDENLY STARTED WORKING CORRECTLY, MADE A NORMAL LANDING. MAINTENANCE REMOVED AND REPLACED THE FLAP POSITION INDICATOR PER MM 27-58-01. OPERATIONAL CHECK GOOD. CHECKED X-DIMENSIONS AT ALL FLAP SETTINGS. ALL POSITIONS GOOD PER MM 27-51-00-5. ALSO, CHECKED/SERVICED FLAP POWER UNIT GEARBOXES AND ALTERNATE FLAP DRIVE U