Narrative:

On the final part of our flight; when we were fairly close to our destination; we witnessed the ADF frequency box let out a stream of smoke. I immediately shut it off and instructed the first officer to pop the circuit breaker. Verified with the checklist. The smoke stopped; but the smell lingered before subsiding. Since the box was on an isolated area on the panel and it immediately stopped smoking; I did not declare an emergency and return to the departure airport. We were also outside the USA at the time in a remote area; so the only suitable airport for us would be our base airport; so we elected to have the inspection done at our base.

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Original NASA ASRS Text

Title: A C402 ADF RADIO FREQ SELECTOR BOX BEGAN SMOKING INFLT. THE CIRCUIT BREAKER WAS PULLED STOPPING THE SMOKING IMMEDIATELY.

Narrative: ON THE FINAL PART OF OUR FLT; WHEN WE WERE FAIRLY CLOSE TO OUR DEST; WE WITNESSED THE ADF FREQ BOX LET OUT A STREAM OF SMOKE. I IMMEDIATELY SHUT IT OFF AND INSTRUCTED THE FO TO POP THE CIRCUIT BREAKER. VERIFIED WITH THE CHKLIST. THE SMOKE STOPPED; BUT THE SMELL LINGERED BEFORE SUBSIDING. SINCE THE BOX WAS ON AN ISOLATED AREA ON THE PANEL AND IT IMMEDIATELY STOPPED SMOKING; I DID NOT DECLARE AN EMER AND RETURN TO THE DEP ARPT. WE WERE ALSO OUTSIDE THE USA AT THE TIME IN A REMOTE AREA; SO THE ONLY SUITABLE ARPT FOR US WOULD BE OUR BASE ARPT; SO WE ELECTED TO HAVE THE INSPECTION DONE AT OUR BASE.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.