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| Attributes | |
| ACN | 1586067 | 
| Time | |
| Date | 201810 | 
| Local Time Of Day | 1801-2400 | 
| Place | |
| Locale Reference | ZZZ.Airport | 
| State Reference | US | 
| Environment | |
| Flight Conditions | Marginal | 
| Aircraft 1 | |
| Make Model Name | EMB ERJ 140 ER/LR | 
| Operating Under FAR Part | Part 121 | 
| Flight Phase | Climb | 
| Flight Plan | IFR | 
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack | 
| Person 1 | |
| Function | Captain Pilot Flying  | 
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine  | 
| Experience | Flight Crew Total 6000 | 
| Person 2 | |
| Function | First Officer Pilot Not Flying  | 
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument  | 
| Events | |
| Anomaly | Aircraft Equipment Problem Critical | 
Narrative:
Shortly after takeoff in climb out we experienced a pack 2 valve close that could not be reset. Determined max alt of 25;000. We leveled at 24;000 and worked fuel numbers for the remainder of the flight. Shortly after; a pack 1 overload message appeared and both packs shut down. We [notified ATC] and began a descent to 10;000 ft requesting vectors to return to [departure airport]. Determined that we were roughly 2500 lbs overweight and began burning fuel for a normal landing. Once landing weight was achieved a normal ILS approach then accomplished with no further incident.cabin pressurization system failed.
Original NASA ASRS Text
Title: EMB-140 flight crew reported returning to departure airport after first losing one pack and then the other.
Narrative: Shortly after takeoff in climb out we experienced a pack 2 valve close that could not be reset. Determined max alt of 25;000. We leveled at 24;000 and worked fuel numbers for the remainder of the flight. Shortly after; a pack 1 overload message appeared and both packs shut down. We [notified ATC] and began a descent to 10;000 ft requesting vectors to return to [departure airport]. Determined that we were roughly 2500 lbs overweight and began burning fuel for a normal landing. Once landing weight was achieved a normal ILS approach then accomplished with no further incident.Cabin pressurization system failed.
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.