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Hs-125 first officer reported severe turbulence encounter that resulted in 4;800 FPM uncommanded rate of climb from 32;000 ft to 33;800 ft before control was regained.
| Attributes | |
| ACN | 1020135 |
| Time | |
| Date | 201206 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZID.ARTCC |
| State Reference | IN |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | HS 125 Series |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 80 Flight Crew Total 3200 Flight Crew Type 1000 |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence |
Narrative:
Just west of the mxq VOR; in IMC conditions; we encountered a pocket of heavy precipitation (not painting on either radar screen) accompanied with severe turbulence and loss of aircraft control. The updraft disengaged the auto-pilot and yaw damper which resulted in a vertical climb of 4;800 ft per minute. Control was regained at 33;800 ft. The captain (pilot monitoring) was able to then notify ATC of the altitude deviation and within a few minutes we provided a more complete PIREP to the controllers.
Original NASA ASRS Text
Title: HS-125 First Officer reported severe turbulence encounter that resulted in 4;800 FPM uncommanded rate of climb from 32;000 FT to 33;800 FT before control was regained.
Narrative: Just west of the MXQ VOR; in IMC conditions; we encountered a pocket of heavy precipitation (not painting on either radar screen) accompanied with severe turbulence and loss of aircraft control. The updraft disengaged the auto-pilot and yaw damper which resulted in a vertical climb of 4;800 FT per minute. Control was regained at 33;800 FT. The Captain (pilot monitoring) was able to then notify ATC of the altitude deviation and within a few minutes we provided a more complete PIREP to the controllers.
Data retrieved from NASA's ASRS site as of July 2013 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.