As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE LANDING GEAR FAILED TO RETRACT. *S/D* NLG SHOCK ABSORBER WAS UNDER SERVICED RESULTING IN A PARTIAL COMPRESSION NEAR END OF RETRACTION CYCLE. THIS ACTION CAUSED THE S/A EXTENDED PROXIMITY SENSORS TO MOVE OUT OF POSITION RESULTING IN THE LGCIU COMMANDING THE NOSE GEAR TO EXTEND. REPLACED SHOCK ABSORBER AND FOUND DYNAMIC SEAL DAMAGED FOLLOWING DISASSEMBLY.