As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED A GEAR UNSAFE CONDITION, AROUND 300 AGL THE LANDING GEAR AUDIBLE WARNING WENT OFF, AND ATC VERIFIED THAT OUR GEAR WAS NOT DOWN.PERFORMED THE LANDING GEAR UNSAFE INDICATION ABNORMAL CHECKLIST. AT THAT POINT WE NOTICED THE LANDING GEAR RELAY WAS POPPED.COMPLETED THE LANDING GEAR MANUAL EXTENSION CHECKLIST, EXTENDED THE LANDING GEAR SUCCESSFULLY.DECLARED AN EMERGENCY.AND LANDED UNEVENTFULLY