As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO LARGE AMP DRAW, 34-PIN CONNECTOR IS MELTING. AT LANDING/TAXI, LIGHT PIN CONTACTS. SUBMITTER SUGGESTS REWIRING WIRES OUTSIDE CONNECTOR OR LARGER PINS FOR CONNECTOR. THIS IS SECOND AIRCRAFT IN FLEET TO HAVE THIS PROBLEM. M20J MODEL ACFT WITH WING MOUNTED TAXI AND LANDING LIGHTS.