As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PACK 1 VALVE CLOSED IN FLIGHT. FOUND BUSTED SLEEVES AFT OF NR 1 DUAL TEMP CONTROLLER AND FWD OF PACK 1 VALVE. REPLACED SLEEVES AND OPERATED PACK CHECKED THE NR 1 BLEED/PACK SYSTEM GOOD DUE TO PACK 1 FAIL IN FLIGHT. CHANGED THE NR 1 PACK PUSH BUTTON OPS CHECK GOOD.