What was found
RT DUCT PRESS 30-50 IN UNISON WITH RIGHT ENG N1 FLUCTUATION .5 PERCENT AND CABIN RATE FLUCT SNPSHT VLV LOCKED CLOSED. REPLACED NR 2 HIGH PRESSURE VALVE CONTROLLER. REOPENED BY OPBLM FOR FAILED ENG RUN. DURING ENGINE START HPSOV EICAS MESSAGE APPEARED. AT IDLE BLEED LIGHT WAS ON. WENT OUT UPON TAXI FOR RUN-UP. AT TAKE OFF POWER RT ENG BLEED LIGHT ON AND OFF WITH EICAS MESSAGE ON AND OFF. ENG SURGED, NO INCREASE OF EGT. REPLACED NR 2 ENGINE PRSOV (PN 773288-7-8-10 / SN 20, POSITION 2) AND HPSOV. RESET BLEED MONITOR AND ACCOMPLISHED ENG RUN. NO FURTHER FAULTS NOTED.