Final answer:
In-use equipment records for supported detached facilities are generally maintained by an organization's logistics or administrative department. These records are vital for asset management, operational readiness, and maintenance.
Step-by-step explanation:
The responsibility for maintaining in-use equipment records, which includes all supported detached facilities as defined in support agreements, typically falls to the logistics or administrative department within an organization. These records are critical for the management of assets and for ensuring that all equipment is operable, accounted for, and properly maintained. The specifics can vary depending on the organization's structure and the type of equipment being tracked but it is essential for operational readiness and maintenance planning.