Narrative:

Climbing through 30000 noticed cabin altitude had risen to approximately 7000 ft and cabin was climbing at a rate of 300 -350 FPM. Asked ATC to start descent and descended to 10000 ft. Made a 180 degrees turn and returned to iah at 10000 ft. ATC did a fine job in every phase. We asked for no special handling, and no emergency was declared.

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Original NASA ASRS Text

Title: ACFT RETURNED TO DEP ARPT DUE TO CABIN PRESSURE PROB.

Narrative: CLBING THROUGH 30000 NOTICED CABIN ALT HAD RISEN TO APPROX 7000 FT AND CABIN WAS CLBING AT A RATE OF 300 -350 FPM. ASKED ATC TO START DSCNT AND DSNDED TO 10000 FT. MADE A 180 DEGS TURN AND RETURNED TO IAH AT 10000 FT. ATC DID A FINE JOB IN EVERY PHASE. WE ASKED FOR NO SPECIAL HANDLING, AND NO EMER WAS DECLARED.

Data retrieved from NASA's ASRS site as of July 2007 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.