A B757 HAD A HIGH STAGE BLEED FAILURE ON TKOF. LATER UNABLE TO MAINTAIN CABIN PRESS THE CREW DECLARED AN EMER AND DIVERTED TO A NEARBY ARPT.

Narrative

AFTER V1; EICAS DISPLAYED 'R HIGH STAGE' CAUTION; CONTINUED TKOF. ON SID; CONTACTED MAINT; TROUBLESHOT; CONTINUED; LEVELED OFF AT FL350; NOTICED CABIN ALT CLBING ABOVE 8000 FT. CLRED TO DSND TO FL260; CABIN STEADY FOR ABOUT 1 MIN; THEN STARTED TO CLB. GOT CABIN ALT WARNING; QRC; CONTINUED DSCNT; EICAS CABIN AUTO INOP CAUTION NOW; RAN IRREGULAR CHKLIST; MASKS IN THE BACK DID NOT DEPLOY. CABIN STARTED TO DSND; DISPATCH AND MAINT INFORMED AND CONSULTED. DIVERTED TO ZZZ. OVERWT LNDG; UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 781945: SHORTLY AFTER REACHING FL350; FO NOTICED THE CABIN ABOUT 8000 FT; SLOWLY CLBING WITH NO EICAS MESSAGES. LOWER ALT REQUESTED FROM ATC IN AN EFFORT TO ALLOW AUTO SYS TO CTL CABIN ALT. CONTINUED DSCNT REQUESTED AS CABIN STILL CLBING. IN THE MID 20'S THE CABIN RATE OF CLB BECAME 0. STAYED THERE ABOUT 1 MIN THEN STARTED TO FLUCTUATE; THEN CLB AGAIN. DSCNT REINITIATED; CABIN ALT WARN OCCURRED; QRC PERFORMED; DSCNT CONTINUED TILL CABIN BELOW 10000 FT. EMER DECLARED; VECTORS RECEIVED TO STAY IN THE ZZZ AREA. THEN GOT A CABIN AUTO INOP MESSAGE. CHKLIST PERFORMED.