Article 431

The execution officer shall endorse on the order the day and manner in which it was executed and, if the latest day specified in the process for the return thereof has been exceeded, the reason for the delay or, if it was not executed, the reason why it was not executed, and shall return the order with such endorsement to the court.

Where the endorsement is to the effect that the execution officer is unable to execute the order, the court shall examine him about the alleged inability and may, if it deems appropriate summon and examine witnesses as to such inability and shall record the result.