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Part 91 aircraft encountered moderate to severe turbulence while deviating around weather.
| Attributes | |
| ACN | 1360479 |
| Time | |
| Date | 201605 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZOB.ARTCC |
| State Reference | OH |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | Small Aircraft Low Wing 2 Eng Retractable Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 25 Flight Crew Total 3500 Flight Crew Type 2000 |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Weather / Turbulence |
Narrative:
While deviating through a break (approx 15 miles wide) between two ends of a long line of thunderstorms cells from west maryland northeasterly through western PA in IMC conditions; I encountered approx 2 mins of moderate to severe turbulence. Initially there was an uncontrolled climb from 9000 ft to 9400 ft; then down to about 8800 ft; then up to about 9500 ft; all before I could inform cleveland center of my problem.he informed me of 9400 foot deviation; thinking it was an error on his equipment to which I informed him; it was not. There had been no warning; thus no time to inform the controller beforehand of the extreme vertical air currents I was encountering. He said there were no other aircraft near and I could deviate vertically as needed. About 5 minutes previously; I had intermittent ground contact and requested lower; which wasn't approved. I was switched to harrisburg approach four times but couldn't even get to the mike switch because of the severe turbulence. Upon contacting harrisburg approach; I again requested lower which was approved. After about 2 minutes; I broke into the sct/clear skies again. Rest of trip uneventful.
Original NASA ASRS Text
Title: Part 91 aircraft encountered moderate to severe turbulence while deviating around weather.
Narrative: While deviating through a break (approx 15 miles wide) between two ends of a long line of thunderstorms cells from W Maryland northeasterly through Western PA in IMC conditions; I encountered approx 2 mins of moderate to severe turbulence. Initially there was an uncontrolled climb from 9000 ft to 9400 ft; then down to about 8800 ft; then up to about 9500 ft; all before I could inform Cleveland Center of my problem.He informed me of 9400 foot deviation; thinking it was an error on his equipment to which I informed him; it was not. There had been no warning; thus no time to inform the controller beforehand of the extreme vertical air currents I was encountering. He said there were no other aircraft near and I could deviate vertically as needed. About 5 minutes previously; I had intermittent ground contact and requested lower; which wasn't approved. I was switched to Harrisburg Approach four times but couldn't even get to the mike switch because of the severe turbulence. Upon contacting Harrisburg Approach; I again requested lower which was approved. After about 2 minutes; I broke into the sct/clear skies again. Rest of trip uneventful.
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.