What was found
NOSE LANDING GEAR TURN LIMITS EXCEEDED DURING GROUND HANDLING OF THE AIRCRAFT WITH TOW VEHICLE. THE NLG STRUT, UPPER TILLER ROLLER (PN 78535-00) WAS DISPLACED OUTSIDE OF STEERING TRACK CHANNEL (PN 95394-00). PILOT DID NOT EXPERIENCE ANY ABNORMAL STEERING DURING TAXI/TAKEOFF. WHEN GEAR WAS RETRACTED, UNSAFE NLG LIGHT WAS EXPERIENCED. PILOT EXTENDED GEAR, LANDED AND NLG COLLAPSED DURING ROLL-OUT!