What was found
PILOT HEARD POPPING NOISE OUT OF GEAR, WHEN GEAR WAS RETRACTED. SELECTED GEAR DOWN AND DID A FLYBY. TOWER SAID NOSE GEAR HALF WAY DOWN, FLEW TO AIRPORT AND LANDED, NOSE GEAR COLLAPSED. LIFTED AIRCRAFT ON TO RUNWAY. NOSE GEAR SWUNG DOWN AND LOCKED, ZERO RESISTANCE, FOUND BELLCRANK BROKEN WHERE FORK BOLT GOES THROUGH.