<< >> NASA ASRS Report 240805, May 1993

Pilot of small aircraft training aircraft lost control of the aircraft and ran off the side of the runway due to a wind shear.

Attributes
ACN	240805
Time
Date	199305
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sjc
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : student pilot : private pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 3000 flight time type : 1500
ASRS Report	240805
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	inflight encounter other other anomaly other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Wind shear at touchdown caused loss of 15 KTS airspeed. Aircraft veered off runway. No damage, but loss of control as wind conditions changed rapidly.

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Original NASA ASRS Text

Title: PLT OF SMA TRAINING ACFT LOST CTL OF THE ACFT AND RAN OFF THE SIDE OF THE RWY DUE TO A WIND SHEAR.

Narrative: WIND SHEAR AT TOUCHDOWN CAUSED LOSS OF 15 KTS AIRSPD. ACFT VEERED OFF RWY. NO DAMAGE, BUT LOSS OF CTL AS WIND CONDITIONS CHANGED RAPIDLY.

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.