Narrative:

I was doing an airplane familiarization ride in the beechcraft sundowner to apply for a flight instructor position at one of the flight school's on the field. I sat right seat; and the instructor sat in the left. The winds were out of the northeast (approximately 060 at 5 knots or so). We were doing some pattern work and had just landed on runway xx; upon landing I increased aileron deflection into the crosswind as the airspeed diminished. Shortly thereafter; the instructor and I both felt a 'snap.' we tested the aileron/elevator controls and determined that everything seemed to be ok. We taxied back and held short of runway xx at Y1. I received clearance to takeoff and I taxied onto the runway. I put full (right control) aileron deflection into the wind and added full power for takeoff; at 55 knots we rotated and climbed approximately 100 ft (to which I held some aileron correction into the wind to avoid drifting). At approximately 100 ft AGL (and taxiway yz laterally) I lost aileron control input and the plane began banking and drifting left of the runway centerline. I pulled the power back and attempted to add full right aileron control; but the ailerons did not respond (I had close to full right rudder input at this point as well). The instructor immediately took the flight controls and called tower stating 'mayday mayday mayday; sundowner is going down.' tower responded by telling us to do whatever we had to do to land. I noticed that the inclinometer ball was swung full scale to the left and I tapped it to get my instructor's attention; I then stated 'try removing a little right rudder to see what happens.' as they did so; the plane veered left at a faster rate; so they responded by adding full right rudder input: this helped to slow our drift rate; but we continued to be pushed left of the runway centerline. The instructor added nose-low elevator control inputs during the entire situation to help bring the plane back to the ground; we continued to dissipate altitude and had reached noticeable ground effect by about taxiway X2. The instructor was able to touchdown in a side-loaded condition on taxiway X; to which I immediately pulled the mixture lever back to 'lean.' the engine began to shut down and we were able to stop the plane roughly 10 feet short of the lima taxiway entrance to runway zz. We tested the aileron yoke control and received no response. We called ground control; received a clearance to cross runway zz; taxi south on X; and to take xz back to the FBO; to which we complied. Upon reaching the ramp; we shutdown and secured the aircraft with no further issues.

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Original NASA ASRS Text

Title: A BE23 aileron control system failure was detected immediately after takeoff but the pilot was able to land the aircraft at the departure airport after declaring an emergency.

Narrative: I was doing an airplane familiarization ride in the Beechcraft Sundowner to apply for a flight instructor position at one of the flight school's on the field. I sat right seat; and the Instructor sat in the left. The winds were out of the Northeast (approximately 060 at 5 knots or so). We were doing some pattern work and had just landed on Runway XX; upon landing I increased aileron deflection into the crosswind as the airspeed diminished. Shortly thereafter; the Instructor and I both felt a 'snap.' We tested the aileron/elevator controls and determined that everything seemed to be OK. We taxied back and held short of Runway XX at Y1. I received clearance to takeoff and I taxied onto the runway. I put full (right control) aileron deflection into the wind and added full power for takeoff; at 55 knots we rotated and climbed approximately 100 FT (to which I held some aileron correction into the wind to avoid drifting). At approximately 100 FT AGL (and Taxiway YZ laterally) I lost aileron control input and the plane began banking and drifting left of the runway centerline. I pulled the power back and attempted to add full right aileron control; but the ailerons did not respond (I had close to full right rudder input at this point as well). The Instructor immediately took the flight controls and called tower stating 'Mayday Mayday Mayday; Sundowner is going down.' Tower responded by telling us to do whatever we had to do to land. I noticed that the inclinometer ball was swung full scale to the left and I tapped it to get my Instructor's attention; I then stated 'try removing a little right rudder to see what happens.' As they did so; the plane veered left at a faster rate; so they responded by adding full right rudder input: this helped to slow our drift rate; but we continued to be pushed left of the runway centerline. The Instructor added nose-low elevator control inputs during the entire situation to help bring the plane back to the ground; we continued to dissipate altitude and had reached noticeable ground effect by about Taxiway X2. The Instructor was able to touchdown in a side-loaded condition on Taxiway X; to which I immediately pulled the mixture lever back to 'lean.' The engine began to shut down and we were able to stop the plane roughly 10 feet short of the Lima taxiway entrance to Runway ZZ. We tested the aileron yoke control and received no response. We called ground control; received a clearance to cross Runway ZZ; taxi south on X; and to take XZ back to the FBO; to which we complied. Upon reaching the ramp; we shutdown and secured the aircraft with no further issues.

Data retrieved from NASA's ASRS site as of April 2012 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.