As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 5496, THE AIRCRAFT UPON REACHING CRUISE ALTITUDE NOTED LT ENGINE TORQUE HAD INCREASED ABOVE LIMITATIONS (4500 TO 4600 LBS FOR ABOUT 10 SECONDS). THE CREW THEN EXECUTED A PRECAUTIONARY SHUT OFF OF LEFT ENGINE AND RETURNED TO FIELD. THEY LANDED SAFELY WITH NO FURTHER INCIDENT. MAINTENANCE DISCOVERED THE LEFT ENGINE WAS OVER TORQUED IN FLIGHT. MORE INFORMATION WILL BE AVAILABLE AT A LATER DATE.