As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE BLEED OFF EICAS MESSAGE ON IDLE DURING DESCENT APPROXIMATLEY 8 DIFFERENT MESSAGES DURING DESCENT PHASE. OPS CHECKED PRSOV IAW 36-11-09, PERFORMED FIM 36-10-08. NO FAULTS FOUND INSPECTED. VISUALLY PRSOV NO PROBLEMS FOUND. REMOVED AND REPLACED THE RT ENGINE HPSOV IAW AMM 36-11-07, TESTED OK. REMOVED AND REPLACED THE RT ENGINE HPC IAW AMM 36-11-08, TESTED OK.