A Maintenance Significant Item (MSI) is crucial in ensuring safety and operational efficiency. This term describes an item whose failure can lead to serious consequences. These consequences may include compromising safety during flights or on the ground, making issues hard to detect during regular operations, and causing significant economic impacts. These impacts can be operational, affecting how an organization runs, or non-operational, which could affect financial stability. In some discussions, these items are also called Safety Significant Items (SSI). It’s essential to identify and monitor MSIs to maintain safety and efficiency.
