Narrative:

On climb out to cruise altitude, we lost control of pressurization. We tried everything in our manual to keep cabin altitude from exceeding 10000 ft. When it was apparent that this was going to be impossible, I called dispatch and got released to las. My landing weight was 153700 lbsþan overweight landing. However, since this model was originally certified to land 154500, I felt it was a better decision to land at this weight than to dump fuel. Supplemental information from acn 245946: en route we discussed whether to make a 3000 pound overweight landing or dump fuel. To save fuel and time, the captain decided to do the overweight landing into las, which was uneventful. No emergency was declared due to not being in a state of emergency.

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Original NASA ASRS Text

Title: A RETURN LAND MANDATED WHEN ACR LGT LOSES CTL OVER CABIN PRESSURIZATION. WT AND BAL CONSIDERATIONS IN OVERWT LNDG.

Narrative: ON CLBOUT TO CRUISE ALT, WE LOST CTL OF PRESSURIZATION. WE TRIED EVERYTHING IN OUR MANUAL TO KEEP CABIN ALT FROM EXCEEDING 10000 FT. WHEN IT WAS APPARENT THAT THIS WAS GOING TO BE IMPOSSIBLE, I CALLED DISPATCH AND GOT RELEASED TO LAS. MY LNDG WT WAS 153700 LBSþAN OVERWT LNDG. HOWEVER, SINCE THIS MODEL WAS ORIGINALLY CERTIFIED TO LAND 154500, I FELT IT WAS A BETTER DECISION TO LAND AT THIS WT THAN TO DUMP FUEL. SUPPLEMENTAL INFO FROM ACN 245946: ENRTE WE DISCUSSED WHETHER TO MAKE A 3000 LB OVERWT LNDG OR DUMP FUEL. TO SAVE FUEL AND TIME, THE CAPT DECIDED TO DO THE OVERWT LNDG INTO LAS, WHICH WAS UNEVENTFUL. NO EMER WAS DECLARED DUE TO NOT BEING IN A STATE OF EMER.

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.