What was found
THE CREW OF FLIGHT 2411 REPORTED NOSE WHEEL VIBRATION AFTER TAKEOFF FROM PHL. THE FLIGHT CONTINUED TO DAY AND MADE AN UNEVENTFUL LANDING. PSA MAINTENANCE FOUND THE LT NLG WHEEL AND TIRE ASSEMBLY OUT OF BALANCE DUE TO FLAT SPOTS ON THE TIRE. THE LT NLG WHEEL & TIRE ASSEMBLY WAS REMOVED & REPLACED IAW CRJ 200AMM 32-42-01-000-801 AND 32-42-01-400-801. THE NLG WAS LUBRICATED IAW CRJ 200 AMM 12-20-32-640-801. BOTH NOSE WHEEL AXLE NUT TORQUES WERE VERIFIED IAW CRJ 200 SL 32-015. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.