As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, NOSE GEAR WOULD NOT RETRACT. REMOVED NOSE GEAR. DISASSEMBLED AND INSPECTED. REPLACED NLG LOWER BEARING WITH NEW BEARING P/N 128-350042-1, SCRAPER RING WITH EW RING P/N 2145-24-0160 AND ALL INTERNAL AND EXTERNAL SEALS. SERVICED AND REINSTALLED STRUT. PERFORMED RETRACTION TEST. ALL TEST SATISFACTORY ALL WORK PERFORMED IAW MM 12-10, 32-20 CMM 32-23.