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BE33 pilot reported encountering severe turbulence resulting in an excursion above assigned altitude. A few minutes later; with a clearance to climb; a downdraft was encountered resulting in airspeed loss and and inability to climb.
| Attributes | |
| ACN | 959467 |
| Time | |
| Date | 201107 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PHL.TRACON |
| State Reference | PA |
| Aircraft 1 | |
| Make Model Name | Bonanza 33 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Multiengine Flight Crew Commercial Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 94 Flight Crew Total 3776 Flight Crew Type 300 |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Speed All Types Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence |
Narrative:
Level 5;000 ft; entered cloud; aircraft rolled 30 degrees left and ascended like an elevator. I disconnected the autopilot; rolled wings level; reduced power and pushed the nose down to stop ascent. Maximum indicated altitude was 5;250 ft. After passing modena (mxe) VOR; phl TRACON cleared me to 8;000 ft. Began climb and at 6;000 ft entered a downdraft; airspeed went from 130 KTS indicated to 90 KTS and was unable to climb with full power at vy for what seemed like a minute or longer. Advised phl TRACON that I was unable to climb due to downdraft. A hundred miles down the airway; washington center advised I should call phl TRACON upon landing. I called and was advised that a pilot deviation was being filed. I have flown lots of weather in many different aircraft and have never experienced windshear and up and downdrafts of this magnitude.
Original NASA ASRS Text
Title: BE33 pilot reported encountering severe turbulence resulting in an excursion above assigned altitude. A few minutes later; with a clearance to climb; a downdraft was encountered resulting in airspeed loss and and inability to climb.
Narrative: Level 5;000 FT; entered cloud; aircraft rolled 30 degrees left and ascended like an elevator. I disconnected the autopilot; rolled wings level; reduced power and pushed the nose down to stop ascent. Maximum indicated altitude was 5;250 FT. After passing Modena (MXE) VOR; PHL TRACON cleared me to 8;000 FT. Began climb and at 6;000 FT entered a downdraft; airspeed went from 130 KTS indicated to 90 KTS and was unable to climb with full power at Vy for what seemed like a minute or longer. Advised PHL TRACON that I was unable to climb due to downdraft. A hundred miles down the airway; Washington Center advised I should call PHL TRACON upon landing. I called and was advised that a pilot deviation was being filed. I have flown lots of weather in many different aircraft and have never experienced windshear and up and downdrafts of this magnitude.
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.