During inspections, which areas of a propulsion turbine require special attention for potential wear?

The focus on bearings and seals during inspections of a propulsion turbine is critical due to their role in ensuring reliable operation and efficiency of the turbine. Bearings support the rotating components by minimizing friction, while seals are essential in preventing leaks of lubricants and ensuring that pressure is maintained in the system.

Wear in bearings can lead to increased friction and overheating, which can result in catastrophic failure if not detected early. Regular checks for wear patterns, lubrication adequacy, and alignment help maintain the effectiveness and longevity of these components. Additionally, seals are vital in keeping the lubricant contained and preventing contaminants from entering the system, which is essential for maintaining the operational efficiency of the turbine.

Inspecting these components helps to mitigate risks associated with malfunctions that could lead to extensive downtime, costly repairs, or potentially dangerous operating conditions. While the other areas like exhaust ports, control systems, and casing also require attention, it is the bearings and seals that have the most direct impact on the turbine's operational integrity and performance.