As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR WARNING AND AFT CARGO DOOR CAUTION MSG APPEARED IN FLIGHT NO PRESSURE ISSUES / REMOVED AND REPLACED P1,P3 AND P6 AT PX102J1 IAW CRJ9 ESPM 20-16-00 AND WDM 52-70-01 RECHECKED CB2-R8 A2 TO GROUND WITH MEGGER 11G OHMS. ALSO RECONNECTED SP121 WIRES TCA4204R AND TCA4205G IAW CRJ9 ESPM 20-16-00 AND WDM 52-70-01. ALL WIRE CHECKS ARE GOOD.