As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO MOVE GEAR HANDLE TO RETRACT (UP) POSITION AFTER TAKEOFF. TROUBLESHOT FOUND NOSE GEAR STRUT WAS NOT FULLY EXTENDING AND NOT MAKING NOSE GEAR SQUAT SWITCH. SERVICED NOSE STRUT WITH NITROGEN AND EXTENSION AND RETRACTION, OPS CHECKS GOOD.