As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BUR - FLIGHT 2554, AFTER TAKEOFF AIRCRAFT FAILED TO PRESSURIZE, NO DOOR STATUS MESSAGES RECEIVED. DIVERTED TO SMF AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE FOUND AFT BAGGAGE DOOR AJAR. INSPECTED DOOR AND AREA AND FOUND NO DEFECTS. OPERATIONAL TEST OF DOOR CHECKS GOOD IAW CRJ-700 AMM 52-31-00-710-801-A01. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.