Immediately after takeoff, the pilot noticed minimal reaction from the aileron control inputs. He was able to land the aircraft safely.

The technician discovered the left aileron was disconnected from the control rod (P/N 1250648-1). The control rod had broken in the threaded area just forward of the aileron control rod-end jamnut.

The submitter believes the break occurred when the rod-end seized due to lack of lubrication.

Part total time-507 hours.