Narrative:

While cruising on a VFR flight from mcallen, tx, to leander, tx, I decided to check left to right roll response of the aircraft by moving the stick left and right rapidly. I have done this several times before. After about the 5TH reversal, the aircraft wanted to continue to roll to the right. I was able to hold the wings level by forcing the control stick hard left. I then noticed that the right aileron and left aileron were both in the up position. The left aileron seemed to move freely but the right aileron had little to no movement. I checked aileron control linkages running through the cabin and all were connected ok. Of course, there were no airports in the vicinity and I considered landing in a field but decided against it due to the nosewheel confign of my aircraft (experimental small aircraft sel). I continued along the intended route of flight intending to land at a hard surfaced runway. However, my arms were so tired from holding hard left stick forces, that I decided to land at the first airport I came to, even though it was a grass runway at zuehl field, a private airport. Being unsure of the slow speed handling of the aircraft, I approached faster than normal and forced the aircraft onto the runway early. This resulted in several bounces because of the rough runway and tired arms. The last bounce collapsed the nose gear and bent the propeller. Cause of the control problem was interference of lower wing skin and right aileron leading edge at an aluminum lap joint on the aileron. I believe that my brisk movement of the stick may have distorted the aileron enough to cause contact with the lower wing skin which fits close like a gap seal. I wish I had continued to a hard surfaced runway.

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Original NASA ASRS Text

Title: PLT OF AN SMA SEL EXPERIMENTAL ACFT DAMAGED THE AILERONS BY MAKING A FAST ACFT ROLL RATE RESULTING IN ONE AILERON BECOMING INOP AND COLLAPSING THE NOSE GEAR AFTER SEVERAL BOUNCES DURING LNDG.

Narrative: WHILE CRUISING ON A VFR FLT FROM MCALLEN, TX, TO LEANDER, TX, I DECIDED TO CHK L TO R ROLL RESPONSE OF THE ACFT BY MOVING THE STICK L AND R RAPIDLY. I HAVE DONE THIS SEVERAL TIMES BEFORE. AFTER ABOUT THE 5TH REVERSAL, THE ACFT WANTED TO CONTINUE TO ROLL TO THE R. I WAS ABLE TO HOLD THE WINGS LEVEL BY FORCING THE CTL STICK HARD L. I THEN NOTICED THAT THE R AILERON AND L AILERON WERE BOTH IN THE UP POS. THE L AILERON SEEMED TO MOVE FREELY BUT THE R AILERON HAD LITTLE TO NO MOVEMENT. I CHKED AILERON CTL LINKAGES RUNNING THROUGH THE CABIN AND ALL WERE CONNECTED OK. OF COURSE, THERE WERE NO ARPTS IN THE VICINITY AND I CONSIDERED LNDG IN A FIELD BUT DECIDED AGAINST IT DUE TO THE NOSEWHEEL CONFIGN OF MY ACFT (EXPERIMENTAL SMA SEL). I CONTINUED ALONG THE INTENDED RTE OF FLT INTENDING TO LAND AT A HARD SURFACED RWY. HOWEVER, MY ARMS WERE SO TIRED FROM HOLDING HARD L STICK FORCES, THAT I DECIDED TO LAND AT THE FIRST ARPT I CAME TO, EVEN THOUGH IT WAS A GRASS RWY AT ZUEHL FIELD, A PRIVATE ARPT. BEING UNSURE OF THE SLOW SPD HANDLING OF THE ACFT, I APCHED FASTER THAN NORMAL AND FORCED THE ACFT ONTO THE RWY EARLY. THIS RESULTED IN SEVERAL BOUNCES BECAUSE OF THE ROUGH RWY AND TIRED ARMS. THE LAST BOUNCE COLLAPSED THE NOSE GEAR AND BENT THE PROP. CAUSE OF THE CTL PROB WAS INTERFERENCE OF LOWER WING SKIN AND R AILERON LEADING EDGE AT AN ALUMINUM LAP JOINT ON THE AILERON. I BELIEVE THAT MY BRISK MOVEMENT OF THE STICK MAY HAVE DISTORTED THE AILERON ENOUGH TO CAUSE CONTACT WITH THE LOWER WING SKIN WHICH FITS CLOSE LIKE A GAP SEAL. I WISH I HAD CONTINUED TO A HARD SURFACED RWY.

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.