What was found
(CAN) ON LANDING PILOT NOTED A BUMP AND SCRAPING NOISE, ACFT CAME TO STOP, PILOT EXITED ACFT AND NOTED NOSE-WHEEL AND FORK ASSY ON RUNWAY BEHIND ACFT. APPEARS STUD ON AXLE FAILED AND BROKEOFF ALLOWING NOSE-WHEEL ASSY TO FALL OFF ACFT ONTO RUNWAY, NO OTHER DAMAGE TO ACFT REPORTED OR INJURIES TO OCCUPANTS. MFG REQUESTED RETURN OF NLG LEG AND AXLE STUD TO FACTORY FOR FURTHER INVESTIGATION.