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A BE35 pilot reported encountering severe turbulence that resulted in an aircraft upset.
| Attributes | |
| ACN | 887443 |
| Time | |
| Date | 201005 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Bonanza 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Single Pilot Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Private |
| Experience | Flight Crew Last 90 Days 36 Flight Crew Total 490 Flight Crew Type 33 |
| Events | |
| Anomaly | Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Cruise flight in IMC and light rain at 9000' on autopilot (s-tec 60-2); initially light turbulence; then severe jolt (hit head on cockpit roof) slowed aircraft; then a second severe jolt - and aircraft knocked over (right wing up) and spiral down and left. Auto pilot disengaged; I rolled wings level. Center asked if I was deviating - I think I croaked 'I'm getting it under control; need block altitude.' center cleared me 7000-8000 block. I have xm weather on garmin 496 and a stormscope. There was no lightning showing and xm showed only green. It was very scary situation. At the upset; I didn't know if I would be able to handle the event. I'm thankful for all of my training - don't overreact. Scan instruments to determine action required. Wings level first. Don't pull too hard to recover from spiral dive. Thanks to center; as they called immediately to inquire and responded with clearance. It just felt better to have someone watching.I should have slowed aircraft sooner and to a slower speed.
Original NASA ASRS Text
Title: A BE35 Pilot reported encountering severe turbulence that resulted in an aircraft upset.
Narrative: Cruise flight in IMC and light rain at 9000' on autopilot (S-Tec 60-2); initially light turbulence; then severe jolt (hit head on cockpit roof) slowed aircraft; then a second severe jolt - and aircraft knocked over (right wing up) and spiral down and left. Auto pilot disengaged; I rolled wings level. Center asked if I was deviating - I think I croaked 'I'm getting it under control; need block altitude.' Center cleared me 7000-8000 block. I have XM Weather on Garmin 496 and a Stormscope. There was no lightning showing and XM showed only green. It was very scary situation. At the upset; I didn't know if I would be able to handle the event. I'm thankful for all of my training - Don't overreact. Scan instruments to determine action required. Wings level first. Don't pull too hard to recover from spiral dive. Thanks to Center; as they called immediately to inquire and responded with clearance. It just felt better to have someone watching.I should have slowed aircraft sooner and to a slower speed.
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.