Narrative:

On climb out the cabin failed to pressurize. We ran the checklists and returned to our departure airport [when still] unable to pressurize the cabin.

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Original NASA ASRS Text

Title: A Q400 flight crew returned to their departure airport following the failure of the pressurization system.

Narrative: On climb out the cabin failed to pressurize. We ran the checklists and returned to our departure airport [when still] unable to pressurize the cabin.

Data retrieved from NASA's ASRS site as of July 2013 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.