What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AFTER T/O FROM KPIT, THE LANDING GEAR LVR INITIALLY WOULDN'T RAISE. 2ND ATTEMPT HANDLE RAISED & ALL GEAR DOORS WOULDN'T CLOSE. THE GEAR SHOWED RETRACTED, BUT THERE WAS A VIBRATION & MOMENTS LATER ECAM STATED "DOORS NOT CLOSE" WHICH HAD CREW RECYCLE GEAR HANDLE. AFTER GEAR WAS RECYCLED THE FOLLOWING ECAM " L/G GEAR NOT UPLOCKED" SHOWED & ALL GEAR INDICATIONS WERE NORMAL. CREW PETURNED TO KPIT. MAINTENANCE FOUND BUSHED LEVER & BOLT WORN ON FLIGHT / GROUND SENSING MECHANISM. REMOVED & REPLACED BUSHED LEVER & BOLT ON FLIGHT / GROUND SENSING MECHANISM IAW AMM 32-21-45. ADJ NLG PROX SENSORS 24GA & 25GA IAW AMM 32-31-73. ACCOMPLISHED SATISFACTORY FUNCTIONAL TEST OF THE EXTENSION & RETRACTION OF THE LANDING GEAR IAW AMM 32-30-00-867-001-A.