What document would you refer to for detailed maintenance procedures for military equipment?

The correct choice is a Technical Manual. Technical Manuals are specifically designed to provide detailed instructions, procedures, and guidelines for the maintenance and operation of military equipment. They contain essential information such as troubleshooting procedures, maintenance schedules, and repair instructions tailored to particular systems or machinery. This makes them invaluable resources for personnel tasked with ensuring that military equipment operates effectively and is kept in optimal condition.

In contrast, Army Regulations typically cover broader policies and procedures that govern military operations, while Standard Operating Procedures (SOPs) outline specific practices within an organization but may not provide the depth of technical information required for maintenance. Maintenance Logs, on the other hand, are used to record what maintenance activities have been performed but do not provide the comprehensive procedural details necessary for conducting those activities. Thus, for in-depth maintenance guidance, the Technical Manual is the most appropriate and accurate resource.