Abstract: A local maintenance monitoring unit is intended to be installed near an item of equipment, in order to make it possible to validate a task that is carried out by a maintenance technician on the item of equipment. The local maintenance monitoring unit is provided with short-range display or communication unit in order to transmit a check-value and a timestamp to a portable communication terminal with which the technician is equipped. It is thus possible to guarantee that the technician assigned for the task is actually located at the site of the maintenance task.