As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 3263 - CREW REPORTED THE RIGHT HAND ENGINE TORQUE GAUGE FLUCTUATES FROM 5,000 TO ZERO IN FLIGHT. AIRCRAFT RETURNED TO FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT HAND ENGINE TORQUE GAUGE IAW B1900D MM 77-10-00, OPERATION CHECKS WERE SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (X)