What was found
EN ROUTE FROM TOL TO DFW, THE NUMBER ONE ENGINE EXPERIENCED A ROLL BACK AT THE TOP OF DESCENT. NO THROTTLE RESPONCE WAS MOMENTARILY NOTED THEN ALL ENGINE PARAMETERS RETURNED TO NORMAL. THE FLIGHT CONTINUED TO DFW FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE ENGINE IN ACCORDANCE WITH THE THE CFMI MAINTENANCE MANUAL WHICH REVEALED CONTAMINATION IN THE MAIN FUEL FILTER. MAINTENANCE REPLACED THE FILTER, PERFORMED A MAXIMUM POWER ASSURANCE CHECK IN ACCORDANCE WITH THE COMPANY JRH BOOK WITH NO DISCREPANCIES NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.