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]
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