As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL390 HEARD BUMP & RED UNLOCK LIGHT CAME ON & STAYED ON WHOLE FLIGHT. FOUND NLG STRUT EXTENSION TO BE BEYOND LIMITS. REMOVED NLG WHEEL ASSEMBLIES. DISASSEMBLED NLG STRUT FOR REPACK. NOTED THAT THE ORIFICE CAP WAS HAND TIGHT & NOT FULLY SEATED. REPACKED NLG IAW CE-750 CMM 32-20-02 & SERVICED IAW CE-750 MM 12-10-38. INSTALLED NLG WHEEL ASSEMBLIES. CYCLED GEAR & DOWN JACKED AIRCRAFT, SERVICE CHECKED GOOD.