As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN`S AND F/O`S YELLOW BAND DISPLAYED ON HSI'S. CIRCUIT BREAKER WAS RESET (A3) IAW MCC WITHIN 30 SEC STARTED TO SMELL BURNING ELECTRIC PLASTIC PULLED CIRCUIT BREAKER A3 AND ODOR DISSIPATED. FOUND ELECTRICAL ODOR FROM RADF RECEIVER, COMPLIED WITH ERA 555368-14. REPLACED RIGHT ADF RECEIVER SYSTEM OPERATION IS NORMAL.