As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED TO HNL WHEN UNABLE TO MAINTAIN CABIN PRESSURE. CHANGED PLANES. *S/D* A DUCT SUPPORT ROD FAILED WHICH CAUSED DUCT MISALIGNMENT AND SUBSEQUENT AIR LOSS. THEN THE BULKHEAD CONDITIONED AIR CHECK VALVE FAILED. THEREFORE, CABIN PRESSURE COULD NOT BE MAINTAINED. THE SUPPORT ROD WAS REPAIRED AND THE CHECK VALVE WAS REPLACED.