As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ADFL CAUTION MSG ON HSI. LEFT ADF INOP-LEFT ADF C/B. POPPED AND SMOKE ODOR, ELECTRICAL FOR APPROX 10 MIN AFTER CB POPPED. VERIFIED LEFT ADF-REC. INOP AND UNIT SMELLS ELECTRICAL SMOKE. REPLACED LT ADF REC - CHECKED AND CLEANED LT ADF REC SHELF CONNECTOR. LEFT ADF CB STAYS IN AND NO ELECT SMOKE DETECTED. PERFORMED L ADF GRD CHECK ALL OPS AND IND NORMAL PER M/M.