As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED 1 LEAK MESSAGE ON EICAS. PERFORMED OPS CHECK OF THE DISTRIBUTION SYSTEM. OPS CHECK FAILED. PERFORMED GVI OF #1 AND #2 PACKS, FOUND BLOWN DUCT ON THE #2 PACK. NEW DUCT AND CLAMP REQUIRED. R&R FWD UPPER COUPLING ON #2 DUEL TEMP CONTROL VALVE. OPS CHECK SAT.