As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN MAIN CARGO LIGHT 15AMP CIRCUIT BREAKER C9001 FAIL TO TRIP WHEN FWD UPPER CARGO LIGHT WAS MISWIRED ALLOWING POSITIVE TO GROUND CAUSING J10 BOX TO BURN UNTIL ELECTRICAL CIRCUIT OPENED. REFERENCE PEMCO WDM 33 30 02 PAGE 3 SHEET 1. REPAIRED IAW AAR EA 12982 AND ASA EA 3330 01021. REBUILT J 10 BOX INSPECTED AND REPLACED DAMAGED WIRING. INSPECTED AND REPAIRED AS REQUIRED ADJACENT WIRE RUNS FROM J10 BOX TO CARGO OVERHEAD LIGHTING.