What was found
THE CREW REPORTED AN OIL BURNING ODOR WITH THE PACKS RUNNING DURING TAKE OFF AND LANDING. MAINTENANCE INSPECTED THE ACFT AND PERFORMED HIGH POWER RUNS AND IDLE RUNS ALL WITH NO DEFECTS, LEAKS, OR ODORS NOTED. MAINTENANCE R & R THE NR 1 ENGINE, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.