What was found
NOSE GEAR STRUT ASSEMBLY COLLAPSED DURING EITHER TAXI OR TAKEOFF. WHEN GEAR WAS RETRACTED THE NOSE FENDER CAUGHT ON THE GEAR DOOR BRACKETS. MOTOR CONTINUED UNTIL IDLER BELLCRANK BROKE. AIRCRAFT MADE AN EMERGENCY LANDING WITH THE NOSE GEAR COLLAPSED. PILOT REPORTED NO ABNORMAL OBSERVATIONS OF THE NOSE GEAR DURING PREFLIGHT INSPECTION. IT IS NOT UNCOMMON FOR THE STRUT TO BLOW THE SEALS AND LOOSE ALL OF ITS FLUID AND NITROGEN DURING COLD WEATHER. LOW UTILIZATION MIGHT HAVE BEEN A CONTRIBUTING FACTOR AS WELL.