As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN VHF CIRCUIT BREAKERS WERE PUSHED IN, THE FREQUENCY INDICATOR LIGHTS FLASHED ON/OFF. DURING HOVER TO THE MAINTENANCE PAD FROM THE BACK ROW, PILOT SMELLED FUMES. REMOVED VHF RADIO AND INSTALLED SERVICEABLE RADIO AND REMOVED BURNED SMELL. VISUALLY INSPECTED BEHIND INSTRUMENT PANEL AND FOUND NO DISCREPANCIES. VISUALLY INSPECTED BEHIND CIRCUIT BREAKER PANEL AND FOUND NO DEFECTS.