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A B737-700 crew experienced a simultaneous dual pack trip at FL410. The packs were reset and cabin did not climb above 10;000 ft and a normal descent followed.
| Attributes | |
| ACN | 840408 |
| Time | |
| Date | 200906 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 145 Flight Crew Type 5000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Cruising a 410 the right pack tripped. I was running the QRH procedure when the left pack tripped off. Both pilots donned oxygen and established communications. I requested and was granted a descent from ATC. Now running the dual pack failure in the QRH; I was able to reset the packs using the trip reset button. At this point the cabin was controllable. The cabin never climbed above 10;000 ft and the event was near top of descent so we intercepted a normal descent profile to our destination.
Original NASA ASRS Text
Title: A B737-700 crew experienced a simultaneous dual pack trip at FL410. The packs were reset and cabin did not climb above 10;000 FT and a normal descent followed.
Narrative: Cruising a 410 the right pack tripped. I was running the QRH procedure when the left pack tripped off. Both pilots donned oxygen and established communications. I requested and was granted a descent from ATC. Now running the dual pack failure in the QRH; I was able to reset the packs using the trip reset button. At this point the cabin was controllable. The cabin never climbed above 10;000 FT and the event was near top of descent so we intercepted a normal descent profile to our destination.
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.