Narrative:

After departure; we received a 'passenger door latch' caution message on EICAS. As we climbed out; I ran the checklist for that situation. It became apparent as we gained altitude; that we would not be able to pressurize the cabin at cruise altitude due to the rapid cabin climb rate as well as a very loud sound emanating from the cabin door; so after consulting with our dispatcher; I elected to divert to ZZZ as we were very near to it at the time. I requested a diversion to ZZZ from center and they vectored us to an approach in ZZZ. We landed in ZZZ with no further incident. Callback conversation with reporter revealed the following information: the reporter stated the problem was the depressurization panel in the door that failed to close as designed when the door was latched.

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Original NASA ASRS Text

Title: A CRJ-200 FLIGHT CREW RECEIVED A PAX DOOR LATCH MESSAGE ON EICAS; AND NOTICED THE AIRCRAFT WAS NOT PRESSURIZING. THEY DIVERTED TO A NEARBY AIRPORT.

Narrative: AFTER DEP; WE RECEIVED A 'PAX DOOR LATCH' CAUTION MESSAGE ON EICAS. AS WE CLBED OUT; I RAN THE CHKLIST FOR THAT SIT. IT BECAME APPARENT AS WE GAINED ALT; THAT WE WOULD NOT BE ABLE TO PRESSURIZE THE CABIN AT CRUISE ALT DUE TO THE RAPID CABIN CLB RATE AS WELL AS A VERY LOUD SOUND EMANATING FROM THE CABIN DOOR; SO AFTER CONSULTING WITH OUR DISPATCHER; I ELECTED TO DIVERT TO ZZZ AS WE WERE VERY NEAR TO IT AT THE TIME. I REQUESTED A DIVERSION TO ZZZ FROM CTR AND THEY VECTORED US TO AN APCH IN ZZZ. WE LANDED IN ZZZ WITH NO FURTHER INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE REPORTER STATED THE PROBLEM WAS THE DEPRESSURIZATION PANEL IN THE DOOR THAT FAILED TO CLOSE AS DESIGNED WHEN THE DOOR WAS LATCHED.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.