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A falcon 50 in cruise at FL390 declared an emergency and diverted due to sudden loss of cabin pressure. Caused by a failed autopressure controller.
| Attributes | |
| ACN | 576470 |
| Time | |
| Date | 200303 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz1.airport |
| State Reference | US |
| Altitude | msl single value : 39000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc tower : btv.tower |
| Operator | general aviation : corporate |
| Make Model Name | Falcon 50 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 576470 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : cabin alt warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
Cabin altitude climbing. I made an emergency descent to ZZZ1. Mask were deployed to passenger. No one was hurt. Callback conversation with reporter revealed the following information: the reporter stated the cabin was climbing so quickly the passenger emergency oxygen masks were deployed manually and an emergency descent was initiated. The reporter said the loss of cabin pressure was caused by a failed autopressure controller. The reporter stated the airplane was a falcon 50 and had no previous history of pressurization problems.
Original NASA ASRS Text
Title: A FALCON 50 IN CRUISE AT FL390 DECLARED AN EMER AND DIVERTED DUE TO SUDDEN LOSS OF CABIN PRESSURE. CAUSED BY A FAILED AUTOPRESSURE CTLR.
Narrative: CABIN ALTITUDE CLBING. I MADE AN EMER DSCNT TO ZZZ1. MASK WERE DEPLOYED TO PAX. NO ONE WAS HURT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE CABIN WAS CLBING SO QUICKLY THE PAX EMER OXYGEN MASKS WERE DEPLOYED MANUALLY AND AN EMER DSCNT WAS INITIATED. THE RPTR SAID THE LOSS OF CABIN PRESSURE WAS CAUSED BY A FAILED AUTOPRESSURE CTLR. THE RPTR STATED THE AIRPLANE WAS A FALCON 50 AND HAD NO PREVIOUS HISTORY OF PRESSURIZATION PROBS.
Data retrieved from NASA's ASRS site as of July 2007 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.