As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GEAR RETRACTION, RED LIGHT IN LANDING GEAR HANDLE REMAINED ILLUMINATED AND ALL GREEN LIGHTS EXTINGUISHED. CYCLED LANDING GEAR DOWN AND ALL GREEN AND RED LIGHTS FUNCTIONED PROPERLY. RETRACTED GEAR AGAIN + RED GEAR HANDLE LIGHT REMAINED ILLUMINATED.