As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GOT UNSAFE NOSE GEAR DOOR LIGHT ON CLEANUP RTB. ON LANDING, HAD SEVERE VIBRATION WHEN NOSE WHEEL LOWERED TO GROUND.CORRECTIVE ACTION:FOUND NLG APEX PIN IMPROPERLY INSTALLED. INSTALLED PIN PER MM 32-21.(SUBSEQUENT D.V.I. OF NLG AND DOORS & W/W FOUND NO DEFECTS REF MM 32-21 & 32-22)