What term describes a structural repair that adheres to FAA regulations?

The term that describes a structural repair adhering to FAA regulations is "approved repair or major alteration." This designation signifies that the repair process has met the stringent requirements set by the Federal Aviation Administration (FAA) to ensure safety and airworthiness in aircraft operations. An approved repair or major alteration usually requires specific documentation, inspections, and certification to confirm compliance with regulatory standards. This ensures that the structural integrity of the aircraft is maintained and that it remains safe for operation.

In contrast, a temporary fix refers to a short-term solution that may not meet the FAA's comprehensive standards for long-term safety and functionality. A minor adjustment typically involves less significant changes that do not affect aircraft safety or performance as critically as major alterations do. Experimental modification, on the other hand, may involve unproven changes that have not yet been evaluated for compliance with FAA regulations, meaning they could be subject to further scrutiny and may not be deemed safe for regular operations.

Overall, "approved repair or major alteration" is the term that best represents a repair or alteration that is compliant with established FAA standards, ensuring the safety and reliability of aircraft structures.