As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, CABIN FAILED TO PRESSURIZE. RETURNED TO FIELD. INSPECTED ALL DOOR SEALS, NO DEFECTS NOTED. INSPECTED OUTFLOW VALVES AND PERFORMED PRESSURIZATION OF ACFT ON GROUND. NO DEFECTS OR LEAKS NOTED. REPLACED PSEU, CABIN PRESSURE SELECTOR PANEL AND RELAYS IN JB11 IAW ESPM. PERFORMED PRESSURIZATION OF ACFT ON GROUND IAW AMM.