As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND 2.9 START BLEED VALVE FAILED CLOSED NR1 ENG. AFTER TROUBLESHOOTING, REPLACED CLOGGED PS3 FILTER BUT FOUND BAD BLEED VALVE. REMOVED VALVE, INSTALLED VALVE. ACCOMPLISHED REPLACEMENT OF P3 FILTER. CHECKED OPS OF VALVE. NO CLUNK. BORO'ED FOUND VALVE FAILED CLOSED. REPLACED VALVE IAW MM. ACCOMPLISHED ITEM ALL PARAMETERS AND OPS CKS GOOD.