As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3817 -ATB/PRESS- DUE TO UNABLE TO PRESSURIZE CABIN. CORRECTIVE ACTION: PERFORMED DCPC 1-2 BITE CHECK. NO FAULTS FOUND. PERFORMED SINGLE PACK CONFIDENCE CHECK ON LEFT-RIGHT PACKS. BOTH PASS LEAK TEST. REPLACED PRESSURE INDICATOR PRECAUTIONARY. OPS CHECKS GOOD.