What percentage of in-service engine failures are attributed to contamination?

The correct percentage indicating that contamination is responsible for in-service engine failures is 70%. This statistic underscores the significant impact that contamination, such as dirt, debris, and chemical contaminants, can have on the reliability and performance of engines.

Contamination can lead to various failure modes, including wear and tear on components, blockages in filters, and compromised lubrication systems. Understanding this statistic is crucial for reliability engineers and maintenance practitioners, as it emphasizes the importance of implementing stringent contamination control measures. Such measures can include regular maintenance, appropriate filtration systems, and environmental controls to minimize the risk of engine failures related to contamination. Recognizing these factors can help in developing effective reliability improvement strategies.