Narrative:

In cruise flight at FL390; the right pack failed. While complying with the QRH procedure for this abnormal condition; the aural master warning sounded for high cabin altitude; with accompanying master warning lights. Cabin altitude was not controllable. We initiated a descent to 10000 feet. We ascertained from the flight attendants that all passengers and crew were ok; and landed uneventfully. Excellent job by first officer (first officer) and the entire cabin crew.

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Original NASA ASRS Text

Title: B767-300ER Captain reported losing control of cabin pressure following the failure of the right pack.

Narrative: In cruise flight at FL390; the right pack failed. While complying with the QRH procedure for this abnormal condition; the aural master warning sounded for high cabin altitude; with accompanying master warning lights. Cabin altitude was not controllable. We initiated a descent to 10000 feet. We ascertained from the flight attendants that all passengers and crew were OK; and landed uneventfully. Excellent job by FO (First Officer) and the entire cabin crew.

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.