Hartmut wrote:
> The Airworthiness Concern" is based of the Sebring inflight > breakup. This is a real issue and I don't want to talk this down. A key question is: was the spar failure causative or was it a result of extreme loads caused by aileron flutter (if there was aileron flutter)? Without aileron flutter or aerobatics, has any Coupe ever had an in-flight breakup due to center section spar failure in the 69 year history of the type? (I don't know of any such incident.) If the aileron flutter really happened and led to the spar failure, should there be an AD requiring annual confirmation of the tightness and specs of the control system? Ed
