As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3297 - AFTER DEPARTURE FROM MSP, CREW NOTED A FLUCTUATION IN THE LT ENGINE TORQUE INDICATION. THEY ELECTED TO RETURN TO MSP AND THE ACFT LANDED WITHOUT INCIDENT. MAINTENANCE PERSONNEL CHANGED FROM NR 1 TO NR 2 TSC BRIDGE AND CLEANED THE LT TORQUE RING CANNON PLUG. ALL SYSTEMS OPERATED SATISFACTORILY. (X)