Narrative:

This event occurred during climb. VMC conditions prevailed and the first officer was the pilot flying at the time. While climbing through 25;000 feet; the crew received a cabin altitude caution message. At that time; we leveled off and requested a lower altitude. ATC initially cleared us to 24;000 feet and told us to expect lower when clear of traffic. Within seconds; we received a cabin altitude warning message. The crew proceeded to don oxygen masks and run the qrc. In the descent; we identified as an emergency. Upon leveling at 10;000; we verified all items on the qrc were completed. At this time; we reassessed the cabin altitude and aircraft condition and determined it was safe to remove the oxygen masks. We looked at our current position and determined that ZZZ was the nearest suitable airport. There were no indications of damage to the aircraft; [and] all doors were closed. The captain asked the first officer to proceed to take the flight controls and radios while the captain ran the QRH. Once the QRH was completed; the captain communicated with the flight attendants; passengers; dispatch; and airport operations. Nearing the airport; we determined that with the current fuel state we would be landing over weight. Thus; the crew determined that the best course of action would be to get delay vectors to burn fuel and adequately brief for the nonstandard approach an arrival. ATC queried if we would like to remain in emergency status. We decided that we did not need to remain in emergency status but remained on our 7700 code until after landing. The flight landed without incident and taxied to the gate. At the gate; all passengers appeared to be in good spirits; happy; and very satisfied with how the entire crew handled the situation.

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Original NASA ASRS Text

Title: CRJ-200 Captain reported a cabin pressurization problem while climbing though 25;000 feet.

Narrative: This event occurred during climb. VMC conditions prevailed and the First Officer was the Pilot Flying at the time. While climbing through 25;000 feet; the crew received a CABIN ALT Caution message. At that time; we leveled off and requested a lower altitude. ATC initially cleared us to 24;000 feet and told us to expect lower when clear of traffic. Within seconds; we received a CABIN ALT Warning message. The crew proceeded to don oxygen masks and run the QRC. In the descent; we identified as an emergency. Upon leveling at 10;000; we verified all items on the QRC were completed. At this time; we reassessed the cabin altitude and aircraft condition and determined it was safe to remove the oxygen masks. We looked at our current position and determined that ZZZ was the nearest suitable airport. There were no indications of damage to the aircraft; [and] all doors were closed. The captain asked the First Officer to proceed to take the flight controls and radios while the captain ran the QRH. Once the QRH was completed; the captain communicated with the Flight Attendants; passengers; dispatch; and Airport operations. Nearing the Airport; we determined that with the current fuel state we would be landing over weight. Thus; the crew determined that the best course of action would be to get delay vectors to burn fuel and adequately brief for the nonstandard approach an arrival. ATC queried if we would like to remain in emergency status. We decided that we did not need to remain in emergency status but remained on our 7700 code until after landing. The flight landed without incident and taxied to the gate. At the gate; all passengers appeared to be in good spirits; happy; and very satisfied with how the entire crew handled the situation.

Data retrieved from NASA's ASRS site 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.