What does excessive turbine temperature indicate during flight?

Excessive turbine temperature during flight is a critical indicator of potential engine damage. High temperatures can suggest that the turbine is operating outside of its designed limits, leading to thermal stress on the engine components. This excessive heat can cause material degradation, warping of parts, or even catastrophic failures if not addressed promptly. Monitoring turbine temperature is essential for safe operation and performance of the engine, and exceeding specified limits can prompt pilots and maintenance crews to take corrective action to prevent serious damage. Understanding this aspect is crucial in aircraft operation, as it helps ensure the longevity and reliability of the engine.