As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONDITIONS BEFORE INCIDENT IS CURRENTLY UNKNOWN. REQUEST TO OPERATOR FOR CONDITION HAS BEEN SUBMITTED. HOLE MELTED IN CONTROLLER COVER AND INSULATION INDICATING AN INTERNAL HEAT SOURCE HIGH ENOUGH TO MELT ALUMINUM AND INSULATION. : ROOT CAUSE ANALYSIS IS UNDERWAY TO DETERMINE CAUSE AND DEVELOP SOLUTIONS TO ELIMINATE RE-OCCURRENCES.