What was found
DETECTED AN ODOR AND SAW SMOKE COMING FROM THE AFT RT AREA OF THE CABIN. PILOT CONFIRMED THE ODOR, AND LANDED IN A CLEARING ON THE ROADSIDE. MX INVESTIGATED AND DETERMINED THAT THE WING TIP STROBE LIGHT SYS WAS THE CAUSE. THE POWER SUPPLY UNIT WAS PREVIOUSLY REPLACED WITH A NEW UNIT THAT AFTERNOON AND OPS CHECKED GOOD. THE POWER CONNECTOR WAS REMOVED FROM THE UNIT (BAGGED AND SECURED) AND A 5 MINUTE GROUND RUN WAS PERFORMED WITH NO RE-OCCURANCE. MX CONCLUDED THAT EITHER THE POWER SUPPLY UNIT WAS FAULTY OR A CHAFED WIRE TO THE STROBE LIGHTS IS GROUNDED AND DAMAGED THE POWER SUPPLY UNIT.