As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED NON-FUNCTIONING LEFT WING STROBE. INVESTIGATION FOUND BURNED FLASH TUBE. TUBE RELACED WITH NEW, UNIT STILL WOULD NOT OPERATE. POWER SUPPLY WAS REMOVED FROM WING, CONNECTORS AND WIRING INSPECTED FOR SECURITY AND CONDITION. ALL SATISFACTORY. POWER SUPPLY WAS REINSTALLED, AND FUNCTION CHECK FAILED AGAIN. POWER SUPPLY REPLACED WITH REMANUFACTURED UNIT. ALL CHECKS OK.