As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
Flight 5135 from CLT to AHN; After takeoff the left main gear transition light remained on. Landing Gear was cycled down and indicated down and locked. Aircraft returned to CLT and landed with no other problems. No emergency was declared. Maintenance found left main gear door damaged, removed and replaced the main gear door. System ops checked good. Aircraft returned to service.