As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR WOULD NOT RETRACT AFTER TAKEOFF. JACKED AIRCRAFT AND CYCLED LANDING GEAR. FOUND HYDRAULIC FITTING AT NOSE GEAR ACTUATOR LEAKING EXCESSIVELY. REPLACED O-RING AT NOSE GEAR ACTUATOR RETRACT PORT FITTING AND COMPLIED WITH GEAR SWING FUNCTIONAL TESTS IAW MFG MM. SERVICED HYDRAULIC RESERVOIR WITH BRAYCO.