Narrative:

While in cruise flight 'left bleed air duct fail' warning message illuminated. We followed QRH checklists and [advised ATC]; began an [expedited] descent to 10;000 feet. 'Left bleed air duct fail' warning message went out and 'left duct fail' caution message illuminated. During descent; 'cabin alt' caution message illuminated. Cabin altitude reached approximately 11;000 feet. Flight continued unpressurized and landed uneventfully with reserve fuel plus 30 minutes.

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Original NASA ASRS Text

Title: CRJ-900 flight crew reported that the 'Bleed Duct Fail' warning message illuminated followed by 'Duct Fail' caution message.

Narrative: While in cruise flight 'L Bleed Air Duct Fail' Warning Message illuminated. We followed QRH checklists and [advised ATC]; began an [expedited] descent to 10;000 feet. 'L Bleed Air Duct Fail' Warning Message went out and 'L Duct Fail' Caution Message illuminated. During descent; 'Cabin Alt' Caution Message illuminated. Cabin altitude reached approximately 11;000 feet. Flight continued unpressurized and landed uneventfully with reserve fuel plus 30 minutes.

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.