AN AT72 CREW FOUND THEMSELVES IN WX WITH A FAILING ENG AT 13000 FT OVER SOUTHERN; GA.

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IN CRUISE TO GNV AT 13000 FT; WE WERE CLRED DIRECT TO TAY FROM JUST S OF MCN. APPROX 30 MI N OF TAY; WE WERE INFORMED BY ZJX OF A LINE OF TSTMS FROM CRAIG ALL THE WAY ACROSS FLORIDA TO THE GULF COAST. WE WERE ALSO ADVISED BY ZJX THAT IT WAS A VERY SOLID LINE AND NO OTHER ACFT WERE ABLE TO GET THROUGH IN THE LAST HR OR SO. WE DETERMINED FROM ZJX THAT OUR BEST COURSE OF ACTION WOULD BE TO FLY N OF VALDOSTA AND TRY GNV FROM THE W. WE TURNED AND FLEW TO VALDOSTA AND DISCOVERED WX AND TSTMS OVER VALDOSTA. WE TURNED N TO TRY AND GO AROUND THE WX. SHORTLY THEREAFTER; THE FO NOTICED THE OIL PRESSURE LIGHT FOR #2 ENG FLASHING ON AND OFF. WE EVALUATED THE OTHER ENG INSTS AND DETERMINED THAT THE ENG WAS GOING BAD. WE TURNED W AND CONTINUED FOR GNV FOR A SHORT TIME. THE OIL LIGHT STARTED FLASHING AT A FASTER RATE SO WE DECIDED TO GET OUT OF THE WX AND FIND A SUITABLE ARPT TO LAND ON. WE REQUESTED FROM ZJX VECTORS TO ALBANY AND WERE GIVEN 010 DEGS. THAT HDG WAS TAKING US DIRECTLY INTO WX. WE THEN GOT THE CRC AND MW FOR A SPLIT SECOND AND DECIDED THAT WE NEEDED TO LAND ASAP. ZJX INFORMED US THAT AYS WAS 35 MI TO THE E AND THE WX WAS CLR. WE TURNED FOR AYS; RECEIVED APCH SPECS AND PREPARED FOR LNDG. WE HAD GOTTEN THE CRC AND MW 2 OTHER TIMES VERY BRIEFLY. WE WERE ALSO EXPERIENCING RADIO PROBS WHICH ADDED TO THE CONFUSION AND SENSE OF URGENCY. AFTER LNDG; THE CRC AND MW CAME ON CONTINUOUSLY FOR ABOUT 15 SECONDS. WE BROUGHT THE ACFT TO A NORMAL STOP AND DEBOARDED. SUPPLEMENTAL INFO FROM ACN 518078: CAPT DECIDED TO DIVERT TO AYS; GA; AND MAKE PRECAUTIONARY LNDG EVEN THOUGH WE HAD NO PERFORMANCE DATA OR APCH PLATES FOR THIS ARPT. WE GOT THE APCH INFO FOR AYS FROM ZJX. IT APPEARED THE ENG (#2 ENG = R) HAD TO BE REPLACED DUE TO METAL IN ENG. WE DIDN'T HAVE TO SHUT DOWN THE ENG INFLT. WE DID NOT WANT TO SHUT DOWN BECAUSE OF WX.