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Pilot of C172 encounters turbulent air after takeoff from uncharted airport southwest of abi. Winds were 280 degrees at 20 KTS gusting to 30 KTS.
| Attributes | |
| ACN | 645289 |
| Time | |
| Date | 200501 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dys.airport |
| State Reference | TX |
| Altitude | agl single value : 100 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : abi.tracon |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial climbout : takeoff |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 200 flight time total : 1600 flight time type : 1200 |
| ASRS Report | 645289 |
| Events | |
| Anomaly | inflight encounter : turbulence inflight encounter other other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited adverse environment |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather Airport Environmental Factor |
| Primary Problem | Weather |
Narrative:
During climb out after takeoff on runway 17 at halla's field; I encountered a sudden environment change from smooth to moderate to severe turbulence possibly caused by wind turbine(south) located from 6000 ft to 9000 ft nnw to northwest of the threshold of runway 17. Winds according to the abilene ATIS were 280 degrees at 20 KTS gusting to 30 KTS. I chose a downwind takeoff since this would keep me from flying into possible vortices produced by these wind turbines and since the tailwind component would be at or less than 10 KTS. The occurrence happened at 100 ft above the runway surface and changed the condition of flight from smooth to very turbulent. I counteracted by leveling the aircraft to increase airspeed to maneuvering speed. I was able to maintain track over the runway centerline until I flew out of the rough air near the end of the runway. After I had departed the rough air; I resumed climb out to 4500 ft MSL and proceeded under VFR conditions.
Original NASA ASRS Text
Title: PLT OF C172 ENCOUNTERS TURBULENT AIR AFTER TKOF FROM UNCHARTED ARPT SW OF ABI. WINDS WERE 280 DEGS AT 20 KTS GUSTING TO 30 KTS.
Narrative: DURING CLBOUT AFTER TKOF ON RWY 17 AT HALLA'S FIELD; I ENCOUNTERED A SUDDEN ENVIRONMENT CHANGE FROM SMOOTH TO MODERATE TO SEVERE TURB POSSIBLY CAUSED BY WIND TURBINE(S) LOCATED FROM 6000 FT TO 9000 FT NNW TO NW OF THE THRESHOLD OF RWY 17. WINDS ACCORDING TO THE ABILENE ATIS WERE 280 DEGS AT 20 KTS GUSTING TO 30 KTS. I CHOSE A DOWNWIND TKOF SINCE THIS WOULD KEEP ME FROM FLYING INTO POSSIBLE VORTICES PRODUCED BY THESE WIND TURBINES AND SINCE THE TAILWIND COMPONENT WOULD BE AT OR LESS THAN 10 KTS. THE OCCURRENCE HAPPENED AT 100 FT ABOVE THE RWY SURFACE AND CHANGED THE CONDITION OF FLT FROM SMOOTH TO VERY TURBULENT. I COUNTERACTED BY LEVELING THE ACFT TO INCREASE AIRSPD TO MANEUVERING SPD. I WAS ABLE TO MAINTAIN TRACK OVER THE RWY CTRLINE UNTIL I FLEW OUT OF THE ROUGH AIR NEAR THE END OF THE RWY. AFTER I HAD DEPARTED THE ROUGH AIR; I RESUMED CLBOUT TO 4500 FT MSL AND PROCEEDED UNDER VFR CONDITIONS.
Data retrieved from NASA's ASRS site as of January 2009 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.