As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3830 UPON SINGLE ENGINE TAXI WITH THE LEFT ENGINE RUNNING SMOKE IN COCKPIT AND CABIN. AIRCRAFT REMOVED FROM SERVICE. FOUND NR 2 ENGINE HYDRAULIC PUMP SEAL BROKE AND LEAKING. REMOVED AND REPLACED NR 2 HYDRAULIC PUMP. THE AIRCRAFT WAS RETURNED TO SERVICE.