What was found
NR 2 ENGINE EXPERIENCED SURGE STALL WITH INSTANTANEOUS EGT EVENT AND SHUTDOWN, WITH VIOLENT VIBRATION PRIOR TO EVENT. CREW REPORTED VISIBLE DEBRIS IN AREA OF NR 2 INLET, DUMPED FUEL AND RETURNED TO HIK, NO FIRE REPORTED. FOUND NR 2 ENGINE SPINNER & FAN WITH FOD DAMAGE. NOSE COWL WITH FOD DAMAGE, ENGINE REPLACEMENT COMPLIED WITH CONDITIONAL INSPECTIONS PER B747 MM 5-51-06, 5-51-71. REPLACED NR 2 ENGINE AND NOSE COWL PER EIA W/C F7103, F7201 JT9 7201JT9RS, F7202, F7203, FF7204, F7205, F7207, F7209, NP7201, NP7201RS, EIA ECRA 662247-72-013-1 OP'S AND LEAK CHECK GOOD PER B747 MM 71-00-00 TEST NR 4 AND NR 8.