What was found
HPN-PIT - FLT 1432 - AFTER TAKEOFF AND LANDING GEAR RETRACTION THERE WAS A LOUD NOISE AND VIBRATION. THE FLT CREW CYCLED THE GEAR THREE TIMES BUT THE VIBRATION REMAINED. THE AIRCRAFT DIVERTED TO LGA AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE RIGHT NOSE GEAR DOOR FOLLOWUP SPRING DISCONNECTED FROM THE FOLLOWUP SYSTEM. THE SPRING WAS REINSTALLED AND THE NOSE GEAR WAS SWUNG. (M)