B767-300 CREW HAD AN EICAS WARNING 'R ENG HPSOV' THAT RENDERED THE ACFT NON ETOPS CAPABLE. R ENG MALFUNCTION RESULTED IN A DIVERSION WITH AN OVERWT LNDG.

Narrative

INTERMITTENTLY DURING THE TOP OF CLB AND CONTINUOUSLY AFTER CRUISE PWR WAS SET; WE OBSERVED THE 'R ENG HPSOV' EICAS MESSAGE AND THE R ENG 'BLEED' LIGHT WITH THE ASSOCIATED MASTER CAUTION INDICATIONS. THE PROC WAS FOLLOWED; WHICH RESULTS IN A SINGLE BLEED; SINGLE PACK OP. IN ADDITION TO THE OBVIOUS FACTORS; THERE ARE ICING AND HDG CONSIDERATIONS IN THIS CONFIGN. THE ACFT HAD A SIGNIFICANT MAINT HISTORY INVOLVING THIS PROB. I ELECTED NOT TO ENTER INTO THE ETOPS/RVSM ENVIRONMENT WITH THE ACFT COMPROMISED IN THIS FASHION. COM WAS INITIATED WITH DISPATCH AND MAINT. THE END RESULT WAS THE SELECTION OF JFK AS A DIVERSION DEST WITH A PLANNED ACFT CHANGE. APPROPRIATE PROCS WERE ACCOMPLISHED; INCLUDING THOSE RELATED TO FUEL DUMPING AND THE OVERWT LNDG. ALL 'DUMPABLE' FUEL WAS DUMPED WHILE AT FL290; BEGINNING AT XA00; AND TERMINATING AT XA15. APPROX 14500 LBS OF FUEL WAS DUMPED. I ELECTED TO ACCOMPLISH AN OVERWT LNDG RATHER THAN HOLDING TO BURN ADDITIONAL 'UNDUMPABLE' FUEL BASED ON FLT MANUAL. THE CONDITION; DAMAGE AND RISKS ASSOCIATED WITH THE HPSOV INDICATION WERE UNKNOWN. AN EMER WAS DECLARED DUE TO THE OP IN EXCESS OF AN ACFT STRUCTURAL LIMIT. THE EMER WAS DECLARED WITH JFK APCH AND PRIORITY WAS GIVEN TO USE RWY 31L RATHER THAN RWY 31R. AN UNEVENTFUL OVERWT LNDG WAS ACCOMPLISHED. TOUCHDOWN WAS SMOOTH AT ABOUT 334000 LBS GROSS WT AND 72600 LBS OF FUEL.