What was found
ELECTRICAL PROBLEMS IN CABIN. FOUND OEU ZONE 1 TXFR BUSS CIRCUIT BREAKER POPPED ON P110 PANEL. TRIED TO RESET- HEARD LOUD BUZZ & SAW FLASH COME FROM L1 DOOR OVERHEAD PANEL. LOWERED PANEL. FOUND CHARRED WIRE BUNDLE. DISCONNECTED ALL CONNECTORS GOING TO L1 DOOR OVERHEAD PANEL. PANEL CONTAINS OEU, LIGHT BALLAST, EMERGENCY LIGHTS, WORK LIGHTS. COLLARED CB ON P110 PANEL- (OEU ZONE 1 TXF R BUS). FOUND CONNECTOR D6531J POS 1&2 SHORTED TOGETHER ARCHED. REPLACED CONNECTOR AND CONTACTS REF WDM. NO CONDUCTOR DAMAGE FOUND, REPAIRED INSULATION. INSTALLED PANEL,CLOSED CB, OPS CHECK OKAY.