What was found
FLT 2834 - PHL-CLT - DURING APPROACH TO CLT, THE CREW NOTICED THE NR 1 ENGINE OIL QUANTITY DECREASING. THE CREW DECIDED TO MAKE A PRECAUTIONARY SHUTDOWN OF THE ENGINE AND DECLARE AN EMERGENCY. AN UNEVENTFUL LANDING WAS MADE. THE AIRCRAFT WAS MAINTENANCE FERRIED TO DFW FOR AN ENGINE CHANGE. THE NR 1 ENGINE WAS REMOVED, REPLACED, AND OPERATIONALLY CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M)