What is one key aspect that differentiates minor repairs from major repairs?

The key aspect that differentiates minor repairs from major repairs is the impact on the pressure boundary system. Major repairs often involve significant alterations or adjustments to the system that can affect its integrity and performance, particularly concerning safety and compliance with regulations. This can include repairs that require extensive testing or re-evaluation to ensure that the pressure boundary maintains its designed function under operating conditions.

On the other hand, minor repairs typically do not pose the same level of risk or require such rigorous assessment. These repairs usually address small, non-critical elements of the system that do not compromise the overall safety and functionality. This distinction is crucial because it informs regulatory compliance, maintenance practices, and operational safety protocols. Understanding the implications of repairs in terms of their impact on pressure boundaries helps to ensure that systems remain secure and effective in their operational roles.