When will an initiated built-in test not be conducted on returned assets from the flight line?

• A. Unopened CNU-660 series container
• B. Opened CNU-660 series container
• C. Power is unavailable
• D. Asset is beyond service life

Answer: (A)

Built-in tests are automatic self-checks that run when the asset is powered and accessible, to verify it’s functioning properly before being reused. If the asset is in an unopened CNU-660 series container, there’s no access to power or the test interface, so the unit inside cannot be powered up or tested. In that state, the built-in test cannot be initiated. Once the container is opened and power is available, the self-test can be started and its results used to determine readiness. Opened containers would allow the test to run; lack of power would simply prevent testing regardless of packaging; and being beyond service life affects disposition decisions rather than the ability to conduct the test in normal conditions. The unopened container scenario is the specific case where the BIT wouldn’t be initiated.