Which statement describes the I-level maintenance concept?

The statement that describes the I-level maintenance concept is that it involves maintenance that restores equipment to a fully operational state. I-level maintenance, or intermediate-level maintenance, is primarily conducted at a naval aviation intermediate maintenance facility and focuses on the repair and servicing of aircraft and associated equipment. This level of maintenance is intended to sustain aircraft operating at a level that ensures mission readiness and safety.

I-level maintenance encompasses a variety of tasks including repair, parts replacement, and testing of equipment to ensure that it operates as intended. This maintenance level serves as a bridge between organizational (O-level) and depot (D-level) maintenance, ensuring that items that can be quickly repaired or serviced on-site are dealt with efficiently without needing to send them to a higher, more resource-intensive maintenance echelon.

The other statements do not accurately reflect the primary function of I-level maintenance. Immediate support is more characteristic of O-level maintenance, while D-level resources are specifically reserved for more complex repair operations. Maintenance performed within a specific interval pertains to scheduled maintenance checks but does not encapsulate the broader purpose of I-level maintenance in restoring operational capacity.