As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LANDING LIGHT SHAFT ASSY INSULATORS WERE FOUND BURNED. IT APPEARS THAT THE FOLLOWING ARE UNAPPROVED PARTS: 46-0943-1 BUS BAR, 46-0944-1 INSULATOR AND 46-0945-1. INSULATORS DO NOT CONFORM TO MANUFACTURER'S SPECS AND HAVE THUS MELTED. THIS PART CARRIES THE ELECTRICAL CURRENT FOR THE LAMP CIRCUIT.