What is the purpose of a CSOSS casualty card?

• A. To record and guide the operator through degraded or fault conditions, ensuring safe and effective operation when normal procedures cannot be followed.
• B. To record fuel consumption.
• C. To designate a crew rotation.
• D. To plan training sessions.

Answer: (D)

The casualty card in CSOSS is a structured guide for operators to use during a casualty or degraded condition. It provides the exact symptoms, prioritized actions, checks, and decision points needed to isolate the fault, preserve what remains of the system, and restore normal operation as safely and quickly as possible. By laying out a concise, system-specific sequence of steps, it helps watch teams respond consistently under pressure, reduces confusion, and ensures critical safety and operational checks are performed.

This isn't about logging fuel usage, assigning crew rotations, or planning training. Those tasks are handled by other records and processes, whereas the casualty card is the reference you follow to manage a fault or abnormal condition and keep the ship from losing essential capability.