As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO HNL BECAUSE THE AIRPLANE WOULD NOT PRESSURIZE. REPLACED BLOWN HOSE CONNECTOR AND REPAIRED DUCT DOWNSTREAM OF NR 1 PACK. AIRCRAFT RETURNED AGAIN DUE TO THE SAME HOSE FAILURE. A BEARING IN THE CONDITIONED AIR CHECK VALVE FAILED CAUSING THE CHECK VALVE TO NOT OPERATE PROPERLY. THEREFORE,THE CABIN DEPRESSURIZED. CHECK VALVE AND HOSE CONNECTOR REPLACED, DUCT REPAIRED.