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A PA32-300 pilot loses control of his aircraft for a short time and experiences an uncommanded climb above his assigned altitude during a windshear encounter near eon, il.
| Attributes | |
| ACN | 451720 |
| Time | |
| Date | 199910 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : eon.vortac |
| State Reference | IL |
| Altitude | msl bound lower : 4000 msl bound upper : 4400 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Windshear Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | PA-32 Cherokee Six/Lance/Saratoga |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 451720 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : overshoot inflight encounter : weather inflight encounter : turbulence non adherence : clearance other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to assigned altitude flight crew : regained aircraft control |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Wind on surface 360 degrees at 18 KTS. At 1200 ft MSL, entered IMC, climbed to 2000 ft then 3000 ft. Encountered windshear at 3000 ft, approximately 50 KTS. Change of direction approximately 90 degrees. At full power vsi read 2000 ft descending. Reported to ord approach and asked for higher due to windshear area. Given 4000 ft and 10 mins later gained 400 ft in updraft. Vsi 1800 FPM climb. Required power off to stop climb and return to assigned altitude reported to ATC situation and to FSS (stl).
Original NASA ASRS Text
Title: A PA32-300 PLT LOSES CTL OF HIS ACFT FOR A SHORT TIME AND EXPERIENCES AN UNCOMMANDED CLB ABOVE HIS ASSIGNED ALT DURING A WINDSHEAR ENCOUNTER NEAR EON, IL.
Narrative: WIND ON SURFACE 360 DEGS AT 18 KTS. AT 1200 FT MSL, ENTERED IMC, CLBED TO 2000 FT THEN 3000 FT. ENCOUNTERED WINDSHEAR AT 3000 FT, APPROX 50 KTS. CHANGE OF DIRECTION APPROX 90 DEGS. AT FULL PWR VSI READ 2000 FT DSNDING. RPTED TO ORD APCH AND ASKED FOR HIGHER DUE TO WINDSHEAR AREA. GIVEN 4000 FT AND 10 MINS LATER GAINED 400 FT IN UPDRAFT. VSI 1800 FPM CLB. REQUIRED PWR OFF TO STOP CLB AND RETURN TO ASSIGNED ALT RPTED TO ATC SIT AND TO FSS (STL).
Data retrieved from NASA's ASRS site as of July 2007 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.