As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE IN-FLIGHT ROUGH AND SMOKE. FOUND ELECTRICAL FUEL PRIMER SOLENOID ACTIVATED AND TIME MASTER SWITCH ON. PUSH TO PRIME SWITCH AT COCKPIT INSTRUMENT PANEL SHORTED TO A CONTINUOUS CLOSED CIRCUIT. REPLACED DEFECTIVE SWITCH WITH SAME PART NUMBER. PROBLEM REPAIRED. (X)