As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IRR AT FL 350 CABIN ALT WARNING FOLLOWED BY CABIN ALT AUTO 1 INOP. CABIN ALT REACHED APPROX 12.5-13.0. REPLACED NR 1 CABIN PRESS CONTROLLER. REPLACED OUTFLOW VALVE ACTUATOR PER MM OPN CKS GOOD BITE ON AUTO 1 AND AUTO 2 VERIFY NO FAULTS MANUAL, OPS NORMAL.