Which of the following is NOT included in the maintenance data reports?

The element that is not included in the maintenance data reports is flight attendant schedules. Maintenance data reports are primarily focused on the technical aspects of aircraft operation and safety. This includes tracking the status of components, detailing any repairs or replacements made to equipment, and maintaining accurate installation records for parts. Such reports are essential for ensuring compliance with safety regulations and effective aircraft maintenance.

In contrast, flight attendant schedules pertain to operational aspects of airline service and personnel management, rather than the specific technical maintenance of the aircraft itself. As a result, they do not fall under the purview of maintenance data reports, which are strictly concerned with the airworthiness and operational integrity of the aircraft.