What was found
FLT 126 DEN-JFK - DECLARED EMERGENCY TO JFK DUE TO FLAPS STUCK A ZERO WHEN HANDLE MOVED TO FLAPS 2 AND 3 POSITION. SLATS WORKED AS ADVERTISED. PER TSM 27-51-00-810-810 DO OPS CHECK OF FLAPS SYS AND INSPECTION OF ACTUATORS & CORRESPONDING TORQUE LIMITER NO FAULT FOUND. RESET SFCC 172 PER AMM 27-51-00 RESET SLATS AND FLAPS WTB PER AMM 27-51-00. REMOVED AND REPLACED ELAC NR 1 PER AMM 27-93-34, OPS CHECK OK AND REPLACED PROX SWITCHES 38CV AND 40CV PER AMM 27-51-44-04. OPS TEST OF SWITCHES NORMAL PER AMM 2751-00-05. FLAP OPERATION NORMAL UNABLE TO DUPLICATE PROBLEM. AIRCRAFT RETURNED TO SERVICE.