As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3269 - ON DESCENT TO MSP, THE LEFT OIL PRESSURE WARNING LIGHT ILLUMINATED AND THE LEFT OIL PRESSURE GAUGE INDICATED DECLINING PRESSURE. THE CREW SHUT THE ENGINE DOWN AND CONTINUED TO MSP. MAINTENANCE REPLACED THE NEGATIVE TORQUE SENSOR SWITCH. SYSTEM OPERATED SATISFACTORILY. (X)