As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 5075 - CREW REPORTED LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. ATTEMPTED ONE RECYCLE WITH NO CHANGE. ALL OTHER INDICATIONS WERE NORMAL, HYDRAULIC AND ELECTRICAL. MAINTENANCE REMOVED AND REPLACED UPLOCK SPRINGS ON BOTH MAIN LANDING GEARS. OPS CHECK WAS GOOD AND AIRCRAFT FLEW A FUNCTIONAL CHECK FLIGHT. AIRCRAFT WAS THEN RETURNED TO SERVICE. (M)