What was found
AIR TURN BACK AFTER TO WHEN GEAR HANDLE RAISED NOSE GEAR RED UNSAFE LIGHT REMAINED ON WITH NOISE AND VIBRATION FOLLOWED QHR PRODECURE RETURNED TO LGA. MAINTENENCE IN PROGRESS JACKED A/C VISUAL CK NOSE GEAR FOUND RT AFT DOOR ROD BINDING REMOVED DOOR ROD AND NOSE PISTON/CYL ASSY. REPLACED NOS STRUT SEALS PER MM. REPLACED RT AFT DOOR ROD INSTALLED PISTON/CYL ASSY SER NOSE STRUT PER MM SWUNG GEAR. OPS CK GOOD DOWN JACKED A/C.