What does Quality Assurance (QA) primarily monitor?

Quality Assurance (QA) primarily monitors instances of wire, harness, and metal line-tube chafing because it directly involves ensuring safety and reliability in aircraft operations. QA is responsible for identifying defects or issues that may compromise the integrity of aircraft systems. By focusing on wiring and line-tube chafing, QA plays a critical role in preventing potential failures that could arise from wear and tear, which might lead to more significant mechanical problems or safety hazards.

Monitoring these specific components is essential, as they are integral to the safe operation of aircraft systems. Any issues related to chafing can lead to electrical failures, fuel leaks, or even critical system failures, which can have dire consequences.

While wiring configurations and component efficiency, total operational hours, and fuel consumption are also important aspects of aircraft maintenance and operation, they fall more under routine maintenance checks or performance analysis rather than the primary focus of QA. QA's role is primarily about compliance with safety standards and identifying defects before they can cause problems, which aligns with monitoring chafing instances directly.