As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMING NORMAL APPROACH CHECKLIST, LOWERED LANDING GEAR AND CONFIRMED 3 GREEN & NO RED CALLOUT. WITHIN A MINUTE GEAR HANDLE BEGAN TO FLASH. ABANDONED APPROACH & PERFORMED LANDING GEAR EXTENTION MALFUNCTION CHECKLIST, LANDED UNEVENTFUL. REPLACED DEFECTIVE LANDING GEAR SELECTOR IAW MM 20-000 & 20-107. PERFORMED FUNCTIONAL EXTENSION, RETRACTION TEST IAW MM 32-300.