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C560XL flight crew reported descending in response to a possible pressurization malfunction that corrected itself later in the flight.
| Attributes | |
| ACN | 1591037 |
| Time | |
| Date | 201811 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Citation Excel (C560XL) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
As we descended through approximately FL260; we heard a sudden sound of cabin air loss from behind us and both of us agreed to descend to a lower altitude. I could feel it in my ears too. Descending through approximately FL210; the air noise quit and the cabin pressure stabilized. We continued down to 11;000 as cleared by ATC and continued to our original destination without incident. I apologized to the passengers for the abrupt descent; but explained that we did it as an abundance of caution.
Original NASA ASRS Text
Title: C560XL flight crew reported descending in response to a possible pressurization malfunction that corrected itself later in the flight.
Narrative: As we descended through approximately FL260; we heard a sudden sound of cabin air loss from behind us and both of us agreed to descend to a lower altitude. I could feel it in my ears too. Descending through approximately FL210; the air noise quit and the cabin pressure stabilized. We continued down to 11;000 as cleared by ATC and continued to our original destination without incident. I apologized to the passengers for the abrupt descent; but explained that we did it as an abundance of caution.
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.