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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A CE525 captain reported losing cabin pressure at FL370. He immediately obtained a clearance to a lower altitude.
| Attributes | |
| ACN | 843127 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citationjet (C525/C526) - CJ I / II / III / IV |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | Captain |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 2200 Flight Crew Type 300 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
While at cruise FL370 I noticed cabin pressure climbing. Upon nearing the 10;000 ft (cabin altitude); I asked for immediate descent before we lost the cabin. We were able to maintain cabin pressure at 10;000 to 15;000 ft; and systems were in working order. Once at destination we had maintenance check pressure system. Before descending I knew we would get master warning at 10;000 ft and immediately called for checklist and called ATC for a descent before we had an issue. No one harmed and ATC did great job of expediting our descent.
Original NASA ASRS Text
Title: A CE525 Captain reported losing cabin pressure at FL370. He immediately obtained a clearance to a lower altitude.
Narrative: While at cruise FL370 I noticed cabin pressure climbing. Upon nearing the 10;000 FT (cabin altitude); I asked for immediate descent before we lost the cabin. We were able to maintain cabin pressure at 10;000 to 15;000 FT; and systems were in working order. Once at destination we had maintenance check pressure system. Before descending I knew we would get master warning at 10;000 FT and immediately called for checklist and called ATC for a descent before we had an issue. No one harmed and ATC did great job of expediting our descent.
Data retrieved from NASA's ASRS site as of April 2012 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.