What classification defines a deficiency that causes a loss of at least one primary mission?

The classification that defines a deficiency causing a loss of at least one primary mission is categorized as a CAT 3 deficiency. This categorization is crucial for understanding the operational impact of various deficiencies on mission readiness. A CAT 3 deficiency indicates a significant issue that impairs the ability to achieve primary missions, thereby directly affecting operational capability and readiness.

Understanding the implications of CAT 3 deficiencies helps personnel prioritize repairs and allocate resources effectively. It highlights that while some deficiencies may impact secondary functions or have less severe consequences, CAT 3 issues demand immediate attention due to their potential to hinder the achievement of critical operational objectives.

The other classifications pertain to varying levels of deficiency severity, but none indicate the same level of operational impact as CAT 3.