Narrative:

The ground loop occurred during takeoff and landing practice in an small aircraft sel aircraft on the active runway 7. Wind direction varied between 32 and 7 at velocities of calm to approximately 10. On the fifth time around for another full stop landing, the wind was northeast. On rollout a gust abruptly caused a pitch-up of the left wing and nose which blocked my visual reference of the runway. I immediately applied full left aileron which dropped the wing and aircraft then began a rapid turn to the right with left wing low before I could correct with left rudder and reverse aileron. The aircraft began sliding with left wing down off of the right side of the runway into the dirt. The ground loop to the right slowed, then stopped when the left main gear collapsed. The left wing tip and propeller tips were also damaged. Perhaps the wind would be less variable/gusty if the trees adjacent to the runways were removed.

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Original NASA ASRS Text

Title: PVT PLT OF SMA SEL CONVENTIONAL GEAR ACFT GND LOOPED DURING LNDG ROLL-OUT.

Narrative: THE GND LOOP OCCURRED DURING TKOF AND LNDG PRACTICE IN AN SMA SEL ACFT ON THE ACTIVE RWY 7. WIND DIRECTION VARIED BTWN 32 AND 7 AT VELOCITIES OF CALM TO APPROX 10. ON THE FIFTH TIME AROUND FOR ANOTHER FULL STOP LNDG, THE WIND WAS NE. ON ROLLOUT A GUST ABRUPTLY CAUSED A PITCH-UP OF THE L WING AND NOSE WHICH BLOCKED MY VISUAL REF OF THE RWY. I IMMEDIATELY APPLIED FULL L AILERON WHICH DROPPED THE WING AND ACFT THEN BEGAN A RAPID TURN TO THE R WITH L WING LOW BEFORE I COULD CORRECT WITH L RUDDER AND REVERSE AILERON. THE ACFT BEGAN SLIDING WITH L WING DOWN OFF OF THE R SIDE OF THE RWY INTO THE DIRT. THE GND LOOP TO THE R SLOWED, THEN STOPPED WHEN THE L MAIN GEAR COLLAPSED. THE L WING TIP AND PROP TIPS WERE ALSO DAMAGED. PERHAPS THE WIND WOULD BE LESS VARIABLE/GUSTY IF THE TREES ADJACENT TO THE RWYS WERE REMOVED.

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.