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A bombardier CL600 first officer reported a failure of the right pack; followed shortly after by a left bleed duct warning and the left pack failed.
| Attributes | |
| ACN | 1367915 |
| Time | |
| Date | 201606 |
| Local Time Of Day | 1201-1800 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Challenger CL600 |
| 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 Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
During cruise; the right pack failed. The captain ran the QRH for single pack operations. About 15 minutes later; we received a left bleed duct warning and the left pack failed. The aircraft became unpressurized at that point. We descended immediately to 10;000 feet MSL. The captain completed the QRH procedure for unpressurized flight. We advised ATC and our dispatcher that we would be diverting.multiple failures led to a high workload environment.
Original NASA ASRS Text
Title: A Bombardier CL600 First Officer reported a failure of the right pack; followed shortly after by a Left Bleed Duct Warning and the left pack failed.
Narrative: During cruise; the right pack failed. The Captain ran the QRH for single pack operations. About 15 minutes later; we received a Left Bleed Duct warning and the left pack failed. The aircraft became unpressurized at that point. We descended immediately to 10;000 feet MSL. The Captain completed the QRH procedure for unpressurized flight. We advised ATC and our dispatcher that we would be diverting.Multiple failures led to a high workload environment.
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.