Real world article
(written from a production point of view)
In the 2260s in the alternate reality, a maintenance log was a written history of repairs and maintenance performed on a Starfleet vessel, like the USS Enterprise. These logs were available through the Federation database. (Star Trek Beyond)
Maintenance logs were mentioned in a list of subjects related to the Enterprise, which appeared to the left of the personnel file for Balthazar Edison. [1]