WDB HAS ENG FAILURE. UNABLE RESTART. DECLARE EMER AND CONTINUED TO DEST.

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IT WAS THE CAPTþS LEG ON A FLT FROM MSP TO BOS IN A WDB. WE WERE AT FL310 IN CRUISE; ON TOP OF THE OVCST; DEVIATING A FEW MI N OF A DIRECT COURSE PREVIOUSLY ASSIGNED BY ATC OF INS DIRECT TO ALB FOR A LINE OF TSTMS. #2 ENG APPEARED TO COMPRESSOR STALL. N1; N2; AND EGT STAYED WELL BELOW UPPER LIMITS AND WHEN THE CAPT BROUGHT #2 THRUST LEVER TO IDLE; THE ENG SPOOLED DOWN. WE ATTEMPTED A RESTART; BUT THERE WAS NO FUEL FLOW OR LIGHT OFF WHEN THE START LEVER WAS RAISED. WE REQUESTED FL240; BUT DUE TO WX ACTIVITY BELOW AND TO THE S; WE DECIDED TO LEVEL OFF AT FL270 TO STAY ON TOP OF THE WX. FL270 WAS APPROVED BY ATC. AFTER 2 MORE START ATTEMPTS AT FL270; WE SECURED THE #2 ENG. BY THIS TIME WE WERE OVER SYR. DURING THIS TIME; I WAS GETTING WX AT SYR AND BOS; FLYING THE AIRPLANE; DEVIATING AROUND BUILDUPS; AND TALKING ON THE RADIOS WHILE THE CAPT AND SO WERE DOING THE CHKLISTS AND COORDINATING WITH COMPANY DISPATCH AND MAINT CTL. DUE TO THE WX CONDITIONS IN THE AREA (LOW CEILINGS; TSTMS; FOG); ARPT FAMILIARITY; RWY LENGTH; ETC.; WE DECIDED THAT BOS WAS THE MOST SUITABLE ARPT. WE HAD 3 HRS WORTH OF FUEL AND THE WX WAS BETTER TO THE E AND WE DIDNþT WANT TO DSND INTO ICING CONDITIONS AND TURB OR TURN AROUND AND GO BACK INTO THE TSTM ACTIVITY. WE DECLARED AN EMER WITH ATC AFTER WE WERE UNABLE TO RESTART THE ENG. (KEPT THEM ADVISED OF OUR SITUATION BEFORE THAT POINT). MAINT CTL THOUGHT THE HYD STAGE OF THE FUEL CTL UNIT HAD FAILED; PREVENTING FUEL TO THE ENG AND WE AGREED. WE CONTINUED TO BOS WITHOUT FURTHER INCIDENT. I BELIEVE THE CREW MADE THE CORRECT DECISION IN THE INTEREST OF SAFETY. ALL RESOURCES WERE UTILIZED BY THE CAPT IN HIS DECISION MAKING AND THE CREW WORKED WELL TOGETHER. SUPPLEMENTAL INFO FROM ACN 207640: DISPATCH SUGGESTED LNDG IN SYR BUT THE CAPT DECIDED TO CONTINUE TO BOS DUE TO THE WX IN SYR. THE WX WAS 500 BROKEN 1000 OVCST; 1 MI AND FOG AND TSTMS OVER THE ARPT. I BELIEVE THIS WAS THE BEST DECISION DUE TO THE WX IN SYR AND FROM THE ENG INDICATIONS. DURING THE ENG FAILURE; THE FO WAS FLYING THE ACFT AND SOMETIMES TALKING TO ATC WHILE THE CAPT AND MYSELF WERE WORKING ON THE PROBLEM AND TALKING TO COMPANY.