As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG HIGH STAGE BLEED VALVE WON`T OPEN. ONLY 5 PSI AT IDLE. LOCKED LEFT ENG HIGH STAGE BLEED CLOSE. REPLACED NR 1 ENGINE HPSOV PER MM, OPS CHECKED GOOD, 33 PSI AT IDLE, 28 PSI WITH A SINGLE PACK OPERATING AND 21 PSI WITH TWO PACKS OPERATING.