What was found
FLIGHT 4556 PIT-FWA, AIRCRAFT WAS TAXIING FOR TAKEOFF WHEN THE CREW NOTICED THE RT ENGINE TORQUE, ITT, FUEL FLOW, AND RPM INDICATIONS WERE FLUCTUATING SEVERELY. AIRCRAFT RETURNED TO GATE AND WAS TAKEN OUT OF SERVICE AT 1628.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 4556 PIT-FWA, AIRCRAFT WAS TAXIING FOR TAKEOFF WHEN THE CREW NOTICED THE RT ENGINE TORQUE, ITT, FUEL FLOW, AND RPM INDICATIONS WERE FLUCTUATING SEVERELY. AIRCRAFT RETURNED TO GATE AND WAS TAKEN OUT OF SERVICE AT 1628.