If one engine shuts down due to overspeed, what happens to the other engine's overspeed system?

If one engine shuts down due to overspeed, what happens to the other engine's overspeed system?

• A. Remains active
• B. Shuts down
• C. Goes into warning mode
• D. No action

Answer: (B)

When one engine hits overspeed and is shut down, the other engine’s overspeed protection is designed to shut down as well. In dual-engine protection schemes, the safety logic is interlocked so a fault on one side leads to a safe, complete shutdown of the unit. This prevents the remaining engine from continuing in a potentially unsafe condition or being driven by a fault path that could be affected by the first engine’s overspeed event. So the other engine’s overspeed system will deactivate to secure the overall system.

When one engine hits overspeed and is shut down, the other engine’s overspeed protection is designed to shut down as well. In dual-engine protection schemes, the safety logic is interlocked so a fault on one side leads to a safe, complete shutdown of the unit. This prevents the remaining engine from continuing in a potentially unsafe condition or being driven by a fault path that could be affected by the first engine’s overspeed event. So the other engine’s overspeed system will deactivate to secure the overall system.