 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Emb-145 captain reported a cabin pressurization issue after the sole operational pack failed to cool the cabin and malfunctioned.
| Attributes | |
| ACN | 1627065 |
| Time | |
| Date | 201903 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 145 ER/LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Experience | Flight Crew Total 3600 Flight Crew Type 1250 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
The airframe we were operating had the number 2 pack meled. In cruise flight the flight attendant (flight attendant) called up and said it was warm in the back. So I adjusted the temperature on the number 1 pack to cool it down in the back. After a few minutes of no temperature change I set the number 1 pack into manual mode. After doing that the number 1 pack shut off. We were at 25000 ft. The cabin altitude climbed from 3500 to 7000 in a matter of seconds. I quickly selected the pack off and on to reset it but it stayed off. We began a descent with ATC and decided to divert. After descending for a while the pack came back on. We decided to make a precautionary landing anyways.
Original NASA ASRS Text
Title: EMB-145 Captain reported a cabin pressurization issue after the sole operational pack failed to cool the cabin and malfunctioned.
Narrative: The airframe we were operating had the number 2 pack MELed. In cruise flight the FA (Flight Attendant) called up and said it was warm in the back. So I adjusted the temperature on the number 1 pack to cool it down in the back. After a few minutes of no temperature change I set the number 1 pack into manual mode. After doing that the number 1 pack shut off. We were at 25000 ft. The cabin altitude climbed from 3500 to 7000 in a matter of seconds. I quickly selected the pack off and on to reset it but it stayed off. We began a descent with ATC and decided to divert. After descending for a while the pack came back on. We decided to make a precautionary landing anyways.
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.