All this work was done under the supervision of an IA. The described issue.  About every 5th or 10th the breaker would blow on the gear down.  Never a big issue, just put the breaker back in and it would continue on it’s way to down and locked.  Nothing in the log book about servicing gear.  It is an ITT actuator.  First step was to replace breaker since they get old and wear out.   That was done and found another breaker where the wire was loose on it.  So yay another potential issue fou