As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE COMING OUT OF #2 ENGINE COMPARTMENT DURING POSTFLIGHT. #2 ENGINE START DRAIN VALVE WAS FOUND TO BE LEAKING EXCESSIVELY AT DRAIN AND THREE WAY UNION AND DRIPPING ONTO HOT SECTION CAUSING SMOKE. REMOVED AND REPLACED #2 ENGINE DRAIN VALVE.