As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH BATTERY POWER ON, THERE IS A STRONG ELECTRICAL ODOR, NO SMOKE. WHILE REPAIRING THE FLOOD LIGHTS, FOUND RESISTOR & TRANSISTOR BURNED OUT IN THE FLOOD LIGHT CIRCUIT. ODOR WENT AWAY AFTER REPLACING THESE COMPONENTS. FLOOD LIGHTS OPS CHECKED GOOD. IAW AMM 33-10-00.