As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WOULD NOT RETRACT (HANDLE WOULD NOT COME UP) AFTER TAKEOFF. TROUBLESHOT NOSE LANDING GEAR - FOUND NOSE STRUT NOT FULLY SERVICED - SERVICED STRUT WITH FLUID AND NITROGEN IAW CESSNA M/M 12-10-38 FUNCTIONALLY TESTED GEAR - NO DEFECTS NOTED AT THIS TIME 03-05-07