List the Four Must Fix Faults

• A. Hang or crash, Map System Error, RS Offline, Reorientation=go
• B. System fault A, System fault B, System fault C, System fault D
• C. Han or crash, Map System Error, RS Isolate, Reorientation=no go
• D. Radar fault, Data fault, Comm fault, Power fault

Answer: (C)

The four must fix faults are the ones that immediately threaten the Patriot system’s ability to operate and reorient, so they must be addressed right away. Hang or crash means the control software or hardware has become unresponsive, which stops all actions and must be resolved to regain control. Map System Error indicates the mapping function is failing, so you can’t reliably identify or track targets, a critical capability that cannot be ignored. RS Isolate refers to isolating the Radar Set when a fault is detected, preventing further damage or spread of the issue and allowing the rest of the system to stay safe and controllable. Reorientation=no go shows that the system cannot complete the reorientation process, which is essential for aligning the radar and weapons with targets; without this, you can’t accurately engage. Together, these indicate faults that directly prevent operation and require immediate corrective action before continuing.