A JS32 IN CRUISE AT 10000 FT DECLARED AN EMER AND DIVERTED DUE TO SUDDEN AND VIOLENT EXPLOSION IN THE #2 ENG. CAUSED BY GEAR BOX FAILURE.

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SUDDEN AND VIOLENT EXPLOSION IN THE R ENG WHILE CRUISING AT 10000 FT. XFERRED ACFT CTL TO THE CAPT AND COMPLETED COMPANY ENG FAILURE MEMORY ITEMS. SHUTDOWN AND FEATHERED R-HAND ENG. DECLARED AN EMER WITH ZDC AND DECIDED TO DIVERT TO CHO. AT THIS POINT WE WERE TOLD TO CONTACT RICHMOND APCH. WE PULLED OUT THE EMER CHKLIST AND CHKED IN WITH RICHMOND. WE NEEDED DELAYING VECTORS TO FINISH THE CHKLIST. SEVERAL TIMES RICHMOND INTERRUPTED US ASKING FOR INFO AND RUSHING US TO SHOOT THE VISUAL APCH INTO CHO. TWICE WE NEEDED TO ASK FOR MORE TIME. ALL APPROPRIATE COMPANY CHKLISTS AND PROCS WERE COMPLIED WITH. THE LNDG IN CHO WAS UNEVENTFUL. WE TAXIED CLR OF THE RWY AND SHUT DOWN ON A TXWY. UPON INSPECTION OF THE R ENG WE NOTICED A LARGE AMOUNT OF OIL WAS LEAKING; AND METAL PIECES COULD BE SEEN IN THE DRAIN HOLES OF THE COWL. SUSPECT GEAR BOX FAILURE. ALL PIECES WERE CONTAINED AND THERE WAS NO FIRE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ENG INDICATIONS WERE ALL NORMAL FOR THE R ENG RIGHT UP TO THE TIME THE ENG EXPLODED. THE RPTR SAID BOTH CREW MEMBERS HAD JUST FINISHED THEIR SIMULATOR TRAINING AND WERE READY FOR THIS EVENT. THE RPTR STATED THE ENG FAILURE WAS CONTAINED WITH NO FIRE. THE RPTR SAID THE ENG WAS REPLACED AND SENT BACK TO THE MANUFACTURER. THE RPTR STATED THE ENG GEAR BOX HAD FAILED.