As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG BURNING ODOR IN COCKPIT AND FIRST CLASS. FOUND LEFT RUNWAY TURNOFF SW SHORTED AND WIRE TERMINAL BURNED OFF. WIRE SPLICED AT PIN 3 OF S1 P5 PANEL LIGHTING CONTROL, WIRE LOCATED BETWEEN CONNECTOR D3 501 TO SWITCH S1. REPLACED LEFT RUNWAY TURN OFF SW ON P5 LIGHTING PANEL. WIRE SPLICED AT PIN 3 OF S1 P5 PANEL LIGHTING CONTROL, WIRE LOCATED BETWEEN CONNECTOR D3 501 TO SWITCH S1 PER WD 33-42-21 PAGE 1.