Narrative:

After departing watertown, I observed smoke (electrical) in cabin and 'yaw servo' circuit breaker popped. Declared emergency with ZBW, returned to airport, landed uneventfully, and evacuate/evacuationed through main cabin door.

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Original NASA ASRS Text

Title: FLC OF AN LTT DECLARED AN EMER AND RETURNED TO LAND AFTER ELECTRICAL SMOKE CAME INTO THE COCKPIT.

Narrative: AFTER DEPARTING WATERTOWN, I OBSERVED SMOKE (ELECTRICAL) IN CABIN AND 'YAW SERVO' CIRCUIT BREAKER POPPED. DECLARED EMER WITH ZBW, RETURNED TO ARPT, LANDED UNEVENTFULLY, AND EVACED THROUGH MAIN CABIN DOOR.

Data retrieved from NASA's ASRS site as of July 2007 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.