As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO CONTROL PRESSURE IN AUTO OR MANUAL. INSPECTED PNEUMATIC SYSTEM. FOUND RIGHT HAND FORWARD PACK VALVE STUCK OPEN. REMOVED AND REPLACED RIGHT HAND FORWARD PACK VALVE. REF 21-51-61 TESTED PRESSURE CONTROL REF 21-30-0, OPS CHECK OK.