As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURN TO FIELD DUE NO PRESSURIZATION ON CLIMB CAUSING CABIN ALT CAUTION MSG.FOUND AFT CARGO DOOR AFT EDGE NOT SECURE CLOSED AND RESECURED AFT CARGO DOOR IAW CRJ AMM 52-31-00. PERFORMED PRESSURIZATION TEST IAW CRJ AMM 21-31-00. NO FAULTS , OR MESSAGES NOTED . A/C OK TO CONTINUE.