Narrative:

I was giving dual instruction on crosswind takeoffs and lndgs to my student, private pilot. We checked the WX about 30 mins before our flight with flight service and 10 mins prior to takeoff on ATIS. The winds according to ATIS were 220/13 which did not limit our airplane since the maximum crosswind component is 15 KTS for the small aircraft we were flying. The runway we used during the entire time was runway 28. Every other pattern we called for a 'wind check' from tower. The winds from tower were 220/14, 190/09, and no reports of gusts were reported when they gave us the winds. On our last landing, the student was at the controls and everything was normal. In the end of the flare, an abrupt gust of wind threw the airplane sideways and the instructor (myself) grabbed for the controls after calling for them and maneuvered the airplane to try to avoid hitting the VASI. I elected not to do a go around because in case we hit the VASI head on, I didn't want to be at full power. The aileron into the wind did not prevent the gust from pushing the airplane off the runway. Six full stop lndgs were performed during our lesson. To prevent this situation from happening, we should have stopped the lesson earlier, because some of the other lndgs involved using full rudder to keep the nose straight, which means we were close to the airplane's limit earlier.

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Original NASA ASRS Text

Title: INSTRUCTOR WITH PRIVATE PLT PRACTICING XWIND LNDGS LOSES ACFT CTL, STRIKES VASI.

Narrative: I WAS GIVING DUAL INSTRUCTION ON XWIND TKOFS AND LNDGS TO MY STUDENT, PRIVATE PLT. WE CHKED THE WX ABOUT 30 MINS BEFORE OUR FLT WITH FLT SVC AND 10 MINS PRIOR TO TKOF ON ATIS. THE WINDS ACCORDING TO ATIS WERE 220/13 WHICH DID NOT LIMIT OUR AIRPLANE SINCE THE MAX XWIND COMPONENT IS 15 KTS FOR THE SMA WE WERE FLYING. THE RWY WE USED DURING THE ENTIRE TIME WAS RWY 28. EVERY OTHER PATTERN WE CALLED FOR A 'WIND CHK' FROM TWR. THE WINDS FROM TWR WERE 220/14, 190/09, AND NO RPTS OF GUSTS WERE RPTED WHEN THEY GAVE US THE WINDS. ON OUR LAST LNDG, THE STUDENT WAS AT THE CTLS AND EVERYTHING WAS NORMAL. IN THE END OF THE FLARE, AN ABRUPT GUST OF WIND THREW THE AIRPLANE SIDEWAYS AND THE INSTRUCTOR (MYSELF) GRABBED FOR THE CTLS AFTER CALLING FOR THEM AND MANEUVERED THE AIRPLANE TO TRY TO AVOID HITTING THE VASI. I ELECTED NOT TO DO A GAR BECAUSE IN CASE WE HIT THE VASI HEAD ON, I DIDN'T WANT TO BE AT FULL PWR. THE AILERON INTO THE WIND DID NOT PREVENT THE GUST FROM PUSHING THE AIRPLANE OFF THE RWY. SIX FULL STOP LNDGS WERE PERFORMED DURING OUR LESSON. TO PREVENT THIS SITUATION FROM HAPPENING, WE SHOULD HAVE STOPPED THE LESSON EARLIER, BECAUSE SOME OF THE OTHER LNDGS INVOLVED USING FULL RUDDER TO KEEP THE NOSE STRAIGHT, WHICH MEANS WE WERE CLOSE TO THE AIRPLANE'S LIMIT EARLIER.

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.