What was found
ON CLIMB OUT, ACFT NOT PRESSURIZING. STOPPED CLIMB AT 9500' RAN QRH, CALLED MX RETURNED TO DEPARTURE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON CLIMB OUT, ACFT NOT PRESSURIZING. STOPPED CLIMB AT 9500' RAN QRH, CALLED MX RETURNED TO DEPARTURE.