What was found
DURING LANDING ROLLOUT AND WHILE IN REVERSE THRUST, THE NR 3 ENGINE EXPERIENCED A COMPRESSOR STALL. N1 AND N2 DECREASED WHILE EGT ROSE TO 505C. THE ENGINE WAS SHUT DOWN IN REVERSE. MAINTENANCE RAN ENGINE AND OPERATIONALLY CHECKED THE REVERSE OPERATION. ALL INDICATIONS WERE NORMAL. INLET AND EXHAUST WERE INSPECTED WITH NO DEFECTS NOTED. PART CAUSING PROBLEM TO BE DETERMINED.