What does a high EGT reading often suggest about engine performance?

A high Exhaust Gas Temperature (EGT) reading is often an indicator of potential turbine damage because it suggests that the engine is operating at a higher thermal stress level than optimal. When the EGT exceeds normal operating parameters, it can mean that the turbine is experiencing excessive heat, which can degrade materials, lead to thermal fatigue, and increase the risk of component failure. This elevated temperature can result from factors such as hot sections operating at maximum limits, incorrect fuel-air ratios, or even mechanical issues within the engine. Therefore, closely monitoring EGT levels is critical for ensuring engine longevity and performance, as consistently high readings can signify that the engine may be on the verge of serious damage if not addressed promptly.