Ainippe
This is from the EAD;
During preliminary investigation, a failed servo input control pushrod (pushrod) assembly was identified. Separation of the pushrod tube and the control rod end with bearing was found.
This EAD requires, within five hours time-in-service, inspecting each M/R and T/R pushrod assembly by inspecting the position of the control rod end in the pushrod tube. If the lockwire passes through the inspection hole, this EAD requires replacing the pushrod assembly. If the lockwire does not pass through the inspection hole, this EAD requires inspecting the jamnut to determine seating position against the pushrod and whether the jamnut can be turned with finger pressure.
Talk to any certified engineer and he will explain to you what happened or why the separation did occur. This is not a faulty part, otherwise the parts would have to be replaced and not like in this case, inspected for correct assembly.