What was found
SURGING OF LEFT ENGINE DURING FLIGHT. PROP GOVERNOR, POSSIBLE FAILURE. REPLACED PROP GOVERNOR AND TESTED OVERSPEED SYSTEM, FOUND OVERSPEED FUNCTIONS PROPERLY AND LIMITS WERE NOT EXCEEDED DURING FLIGHT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SURGING OF LEFT ENGINE DURING FLIGHT. PROP GOVERNOR, POSSIBLE FAILURE. REPLACED PROP GOVERNOR AND TESTED OVERSPEED SYSTEM, FOUND OVERSPEED FUNCTIONS PROPERLY AND LIMITS WERE NOT EXCEEDED DURING FLIGHT.