Final answer:
FCI format refers to a 'Formatted Characteristic Item' used in logistics to manage data about equipment details, such as serial numbers and operational status. It is usually part of a digital form or specialized database software for equipment management.
Step-by-step explanation:
The FCI format used to load, change, or delete equipment authorized/in-use details is typically a specific structured data format required by the organization or software system handling the equipment details. In military or government contexts, FCI often refers to a 'Formatted Characteristic Item', which is often used to organize data for logistics purposes, including details about equipment and supplies. Depending on the specific system in place, this could be a digital form, a database entry system, or specialized software designed for logistics and supply chain management. Authorized personnel would enter the relevant details about the equipment - such as serial numbers, status, location, and operational readiness - into the system, where it can be updated or deleted as needed.