Narrative:

Climbing through approximately 11;500 feet the master warning illuminated along with the cabin altitude warning. I turned ATC over to the first officer; the PF; who stopped the climb and coordinated a descent back to 10;000 feet while I executed QRH emergency procedures. We declared an emergency for an immediate return to our departure airport. There were no further complications and we landed on runway 8 approximately 10 minutes after receiving the warning.

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Original NASA ASRS Text

Title: An MD-82 suffered a pressurization problem climbing out of approximately 11;500 MSL. They declared an emergency; conducted appropriate QRH checklists and returned uneventfully to their departure airport.

Narrative: Climbing through approximately 11;500 feet the Master Warning illuminated along with the Cabin Altitude warning. I turned ATC over to the First Officer; the PF; who stopped the climb and coordinated a descent back to 10;000 feet while I executed QRH emergency procedures. We declared an emergency for an immediate return to our departure airport. There were no further complications and we landed on Runway 8 approximately 10 minutes after receiving the warning.

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.