Which term refers to the documentation of work performed by maintenance technicians?

The term that best refers to the documentation of work performed by maintenance technicians is a log book. A log book serves as a comprehensive record that captures various details of all maintenance activities, including dates, tasks completed, and observations made during those activities. This documentation can be crucial for tracking maintenance history, ensuring accountability, and assessing the effectiveness of maintenance practices over time.

While service reports, work orders, and activity records also document maintenance activities, they tend to be more specific and may not encapsulate a broader range of records maintained in a log book. Service reports typically detail the work done following a request or service call, work orders are requests for maintenance tasks to be performed, and activity records may track specific tasks but not encompass all maintenance documentation. The log book's overarching nature makes it the most suitable choice for capturing a wide range of maintenance work performed.