What was found
AFTER TAKEOFF, PILOT RETRACTED GEAR. HE HEARD A LOUD BANG UNDER HIS FEET, AND SELECTED GEAR DOWN. HE NOTICED IN THE MIRROR THE NOSE GEAR WAS NOT DOWN AND LOCKED. AFTER NUMEROUS ATTEMPTS TO BRING THE GEAR DOWN, HE MADE A SUCCESSFUL LANDING, BUT THE NOSE GEAR COLLAPSED ON TOUCH DOWN. PART HAD 3,315.2 HOURS TT. PART HAD 78 HOURS SINCE IT WAS VISUALLY INSPECTED AT ANNUAL. SUBMITTER RECOMMENDED REMOVAL AND NDI EVERY 500 HOURS; REPLACEMENT AT 2,500 HOURS.