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An air carrier flight crew declared and emergency and returned to their departure airport when they lost control of the pressurization system.
| Attributes | |
| ACN | 950034 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZLA.ARTCC |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization Control System |
| Person 1 | |
| Function | First Officer |
| Person 2 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
During cruise flight at FL380 we were alerted to a cabin alt of 11;000 ft. We completed QRH procedures; declared an emergency with center and returned to our departure airport. The landing was overweight at 201.8 pounds gross; approximately 100 FPM rate of descent and the brakes were applied manually after decelerating to 60 KTS.
Original NASA ASRS Text
Title: An air carrier flight crew declared and emergency and returned to their departure airport when they lost control of the pressurization system.
Narrative: During cruise flight at FL380 we were alerted to a Cabin Alt of 11;000 FT. We completed QRH procedures; declared an emergency with center and returned to our departure airport. The landing was overweight at 201.8 LBS gross; approximately 100 FPM rate of descent and the brakes were applied manually after decelerating to 60 KTS.
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.