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Emb-175 flight crew reported returning to departure airport after the sole remaining air conditioning/pressurization pack failed in flight.
| Attributes | |
| ACN | 1485114 |
| Time | |
| Date | 201709 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 170/175 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 Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Aircraft had 2 MEL's on it. Pack 1 was inoperative and the ram air dampers. On initial climb out; we received a bleed 2 overpressure. The QRH procedure was run and [it] did not reset the message. We continued the QRH procedure which led us to use crossbleed which didn't work. The procedure led up to [a landing] at the nearest suitable airport. Because pack 1 was inoperative we had no pressurization as well since we lost pack 2 with the bleed overpress and crossbleeding didn't work. The aircraft had a history of bleed 2 overpressure.
Original NASA ASRS Text
Title: EMB-175 flight crew reported returning to departure airport after the sole remaining air conditioning/pressurization pack failed in flight.
Narrative: Aircraft had 2 MEL's on it. Pack 1 was inoperative and the Ram Air dampers. On initial climb out; we received a Bleed 2 Overpressure. The QRH procedure was run and [it] did not reset the message. We continued the QRH procedure which led us to use crossbleed which didn't work. The procedure led up to [a landing] at the nearest suitable airport. Because Pack 1 was inoperative we had no pressurization as well since we lost pack 2 with the bleed overpress and crossbleeding didn't work. The aircraft had a history of Bleed 2 overpressure.
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.