As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT, DURING GEAR RETRACTION THE LEFT HAND MAIN GEAR DOOR HAD UNSAFE WARNING LIGHT. RECYCLED GEAR SEVERAL TIMES LIGHT WOULD NOT GO OUT. DUMPED FUEL AND ACCOMPLISHED AIR TURNBACK TO HRE WITHOUT INCIDENT. INSPECTED AIRCRAFT AND FOUND LT MLG DOOR SWITCH BURNED OUT. REMOVED AND REPLACED SWITCH, SYSTEM TESTED GOOD PER MM CH 32-10.