As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPROX 10800, DURING CLIMB OUT PAX OUTER HDL CAUTION MSG POSTED PRESSURIZATION CLIMBING NORMAL, 20 SEC LATER PAX DOOR WARNING MSG POSTED ALONG WITH PROX SYS 1 STATUS MSG PRESSURIZATION STILL SEEMS NORMAL. RETURNED IAW EMER PROCEDURES. PERFORMED GVI OF PX107 & OPERATIONAL CHECK OF PAX DOOR IAW AMM 52-11-00. NO DEFECTS NOTED, PAX DOOR OPERATION & INDICATIONS NORMAL.