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A lear 35 captain reported loss of cabin pressure above FL300. The flight crew executed an emergency descent to 11;000 ft where they regained control of the pressurization.
| Attributes | |
| ACN | 984207 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Learjet 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 6600 Flight Crew Type 200 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
While descending through the thirties; the cabin altitude above ten thousand horn activated. The crew was unable to regain control of the cabin altitude; and; per the checklist; initiated an emergency descent. ATC cleared the aircraft to 11;000 ft. Upon reaching 11;000 ft; the crew was able to return the cabin to normal pressurization and completed the trip without any further problems.
Original NASA ASRS Text
Title: A Lear 35 Captain reported loss of cabin pressure above FL300. The flight crew executed an emergency descent to 11;000 FT where they regained control of the pressurization.
Narrative: While descending through the thirties; the CABIN ALTITUDE ABOVE TEN THOUSAND horn activated. The crew was unable to regain control of the cabin altitude; and; per the checklist; initiated an emergency descent. ATC cleared the aircraft to 11;000 FT. Upon reaching 11;000 FT; the crew was able to return the cabin to normal pressurization and completed the trip without any further problems.
Data retrieved from NASA's ASRS site as of April 2012 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.