What was found
DURING CRUISE FLIGHT AT FL 280, MACH.82, A SUDDEN VIBRATION WAS FELT. NR 2 ENGINE INDICATED; EGT 540, N2 80 PERCENT, OIL TEMP 125 DEG. OIL QUANTITY WAS ZERO AND EPR WAS 1.0. NR 2 ENGINE WAS SHUTDOWN AND EMERG CHECKLIST WAS ACCOMPLISHED. ENGINE WINDMILLED AT APPROX 35 PERCENT N2, OIL PRESSURE INDICATED 15-20 PSI. ENGINE WINDMILLED FOR 2 HRS AND 20 MIN. AIRCRAFT 3 ENGINE FERRIED TO ILN. NR 2 ENGINE WAS REPLACED.