As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RED GEAR UNLOCK LIGHT WOULD NOT EXTINGUISH AFTER TAKEOFF. HAD NORMAL HYD PRESSURES. PERFORMED ABNORMAL CHECKLIST FOR GEAR UNLOCK LIGHT AND GEAR EXTENDED NORMALLY. CYCLED GEAR & CONFIRMED DISCREPANCY. FOUND NLG NOT LOCKING IN UPLOCK DUE TO NLG DOORS ARE TO TIGHT. ADJUSTED GEAR DOORS AND CYCLED GEAR. OPS CHECKED GOOD IAW MM 52-50-20. OHMED OUT UPLOCK SWITCHES, NO DEFECTS NOTED.