Turbine Overhaul (OH) Test 1 Practice

Erosion damage happens when hard particles in the airflow strike turbine blades and wear away material. Ice shards and carbon buildup are exactly the kinds of particles that can enter the engine and impact blades at high speed, causing that abrasive wear. This isn’t limited to a single phase like startup or post-maintenance; as long as such particles are present or shed into the flow, erosion can occur during normal operation. So, yes, carbon build-up or ice shards can contribute to erosion damage.