What was found
DURING CRUISE, AT FL 390, NR 2 ENGINE EMITTED A LOW BOOMING NOISE FOLLOWED BY A RUMBLE AND VIBRATION. DECREASE IN EPR, N1, N2, EGT TO 300 DEGREES CELSIUS AND FUEL FLOW ZERO. ACCOMPLISHED ENGINE SHUT DOWN PER CHECKLIST. ATTEMPTED TWO RESTARTS, BOTH UNSUCCESSFUL. OIL PRESSURE REMAINED AT 13 PSI. REMOVED AND REPLACED FUEL PUMP AND FUEL CONTROL UNIT AS PER MM 73-11-001 PAGE 401 AND MM 73-21-01 PAGE 401. OPS CHECKED NORMAL. (M)