As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - NR 2 ENGINE SURGED FROM FLIGHT IDLE WHILE ON SHORT FINAL, GO AROUND EXECUTED. ENGINE SURGED AGAIN 30 PERCENT TORQUE TO 70 PERCENT ON DOWN LEG. NR 2 ENGINE SHUTDOWN PER EMERGENCY CHECKLIST. AIRCRAFT LANDED SINGLE ENGINE WITHOUT INCIDENT. ENGINE HARNESS REPLACED AND NP PROBE REPLACED. ENGINE OPS CHECKED GOOD ON GROUND RUN, AIRCRAFT RETURNED TO SERVICE.