What was found
(CAN) AS FLIGHT IDLE POWER WAS SET DURING LANDING APPROACH, THE RT ENGINE CONTINUED TO DECELERATE WELL BELOW FLIGHT IDLE. THE POWER LEVER WAS ADVANCED AND POWER RECOVERED TO A SETTING ABOVE FLIGHT IDLE. THE ENGINE DID NOT FLAME OUT, NOR WAS THERE AN INADVERTENT RELIGHT. THERE WERE NO EXCEEDANCES. POWER MERELY ROLLED BACK SUB IDLE, AND RECOVERED AS THE POWER LEVER WAS ADVANCED. ITT AND FUEL FLOW WERE NOTED TO DECLINE. THE ACFT LANDED UNEVENTFULLY.