As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF RAISED GEAR, THREE GREEN GEAR LIGHTS EXINGUISHED, RED TRANSIT LIGHT EXTINGUISHED, RED LIGHT STARTED BLINKING EVERY 3 TO 5 SECONDS. PERFORMED LANDING GEAR UNSAFE EP, RECEIVED THREE GREEN LIGHTS. LANDED AT HBP WITHOUT INCIDENT. RESET THE GAP ON THE PROXIMITY SWITCH TO SPECIFICATIONS.