As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON REMOVING THE LED LIGHT TUBE ASSEMBLY IN POSITION RT UPPER 4, IT WAS FOUND THAT THE LED LIGHT TUBE HAD BURNED OUT, CAUSING THE LIGHT LENS TO MELT AND FUSE TO THE LED LIGHT TUBE. ALSO RT UPPER 1 LED LIGHT TUBE ASSEMBLY HAD SIGNS OF A SIMILAR FAILURE.