B767 FLT CREW ENRTE TO EUROPE HAS L HPSOV EICAS AND DIVERTS TO ZZZ FOR OVERWEIGHT LANDING AT COMPANY'S DIRECTION. NO EMERGENCY IS DECLARED.

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CLBING THROUGH APPROX FL230 WE RECEIVED A L HPSOV EICAS MESSAGE WITH A BLEED OVERHEAT LIGHT. AFTER FOLLOWING THE QRH PROCS; WE CONTACTED COMPANY VIA RADIO. WE ADVISED THE COMPANY OF THE EICAS MESSAGES AND THE COMPLETED QRH PROC AND ASKED WHAT THEY WANTED US TO DO. COMPANY ASKED US TO RETURN AND THEN CHANGED THEIR REQUEST TO ZZZ. UPON REACHING THE DECISION TO DIVERT; WE ADVISED THE COMPANY THAT WE WOULD BE OVERWT UPON REACHING ZZZ AND ASKED WHAT THEY WANTED US TO DO. THE COMPANY RESPONSE WAS TO NOT DUMP FUEL AND TO MAKE AN OVERWT LNDG. ENRTE TO ZZZ WE RECEIVED ANOTHER PHONE PATCH AND DISCUSSED CONTINUING TO DEST. AT THIS POINT; IT WAS APPROX 2.5 HRS INTO THE FLT TO ZZZ N OF OUR ORIGINAL RTE TO FLY THE ARR. WHILE WORKING WITH ATC FOR A NEW CLRNC WE WERE CLRED TO DEST VIA DIRECT ZZZ1. AFTER ENTERING THE NEW FLT PLAN; THE COMPANY WAS GIVEN A POS RPT AND IT WAS DETERMINED THAT WE DID NOT HAVE THE REQUIRED FUEL AT THE RE-RELEASE POINT. WE ESTABLISHED ANOTHER PHONE PATCH AND WERE TOLD THAT THE PREFERRED DIVERSION ARPT WAS ZZZ. WE REQUESTED RWY AND CFR BECAUSE OF THE OVERWT LNDG. WE CHOOSE NOT TO DECLARE AN EMER AS IT WAS NOT AN EMER SITUATION. IF WE THOUGHT THAT IT WAS; WE WOULD HAVE NOT ATTEMPTED THE OVERWT LNDG. THE CFR REQUEST WAS SIMPLY IN THE EVENT OF A HOT BRAKE SHOULD THE LNDG BE HARDER THAN NORMAL; OR A STUCK BRAKE WITH THE INCREASED VREF 30 APCH SPD. NEXT TIME; WE WILL TAKE INTO CONSIDERATION THAT COMPANY GUIDANCE DOES NOT OVERRULE THE FOM OR FAR'S. SUPPLEMENTAL INFO FROM ACN 806397: PART 121 FLT ON A REDISPATCH FLT PLAN. DEPARTED WITH A ZFW 117.2 KG. HOWEVER DISPATCH FLT PLAN AND RELEASE CALLED FOR A ZFW OF 115.4 KG. FUEL WAS ADDED; TKOF NUMBERS REVIEWED WITH NO CONCERN. ENDED UP DIVERTING TO ZZZ BECAUSE INSUFFICIENT FUEL AT POINT OF REDISPATCH. HOWEVER FUEL LOAD ON LNDG MADE AN OVERWT LNDG DUE TO AN OPERATIONAL DECISION NOT TO DUMP FUEL AND NOTE IN LOGBOOK OF OVERWT LNDG AND SUBSEQUENT OVERWT LNDG INSPECTION. ALL REQUIRED MAINT WAS DONE AND FUEL WAS PUT ON ACFT. FLT CONTINUED TO DEST. THE NEXT DAY; OPS INFORMED CREW OF EXCEEDING ZFW TKOF. WHAT SHOULD HAVE HAPPENED WAS A CALL TO DISPATCH FOR A NEW FUEL ANALYSIS DUE TO EXCESS ZFW AND FLT BEING A REDISPATCH AND ETOPS FLT. CONTRIBUTING FACTORS INCLUDE GND PERSONNEL NOT BEING FAMILIAR WITH PAYLOAD BEING USED BY DISPATCH TO COMPUTE FLT PLAN. FLT PLAN SHOWS FLT PLAN ZFW IN UPPER HDG OF FLT PLAN; WHILE REDISPATCH FLT PLAN USES A DIFFERENT FORMAT LISTING ZFW AMONG LIST OF OTHER PERTINENT NUMBERS. CAPT AND CREW MISREAD ZFW ON FLT PLAN BRINGING NO ATTN TO ALT ZFW.