As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROBLEM: AFTER DEPARTURE FROM KDAL, THE FLIGHT CREW REPORTED "ERRATIC TORQUE CAUTION AND WARNING CAS MESSAGES ASSOCIATED WITH AIRCRAFT SURGES". THE AIRCRAFT DIVERTED TO KGVT AND MADE AN EMERGENCY LANDING. THE FOLLOWING MX WAS ACCOMPLISHED. "PERFORMED TQ TRANSDUCER CANNON PLUG CLEANING + FUNCTIONAL TEST IAW AMM 12-B-71-00-03-00A-250A-A AND 12-B-77-40-03-00A-903A-A, OPERATIONAL CHECKS GOOD AND NO LEAKS WERE NOTED. THE AIRCRAFT WAS RELEASED BACK TO SERVICE.