As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT 2329: EXHAUST SMELL COMING FROM NR 2 BLEED AIR. TURNED NR 2 BLEED AIR OFF AND SMELL WENT AWAY. MAINTENANCE GROUND RAN NR 2 ENGINE WITH BLEED AIR ON FOR EXTENDED TIME. NO EXHAUST SMELL IN CABIN OR COCKPIT. NO DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.