What does an upwards arrow indicate in the status indicators?

• A. No casualty
• B. Degraded
• C. Failure
• D. Total

Answer: (A)

Reading the status indicators is all about a quick, at-a-glance assessment of a subsystem’s condition. An upwards arrow signals there are no casualties affecting that item—the system is functioning normally and is not degraded or failed. It’s the “all clear” cue you use during casualty control to know that particular part is ready and available. Other states would be shown with different indicators (a symbol or direction indicating degraded or failed), which is why the upward arrow specifically corresponds to no casualty.