What is the role of the CDI during a pre-flight inspection?

The role of the Collateral Duty Inspector (CDI) during a pre-flight inspection is to verify the aircraft's readiness and compliance with all maintenance requirements. This responsibility is crucial because the CDI ensures that all systems and components of the aircraft are functioning correctly and that any maintenance procedures have been followed properly. This verification helps guarantee the safety and operational efficiency of the aircraft prior to flight.

By focusing on readiness and compliance, the CDI plays a vital part in maintaining aviation safety standards. This involves reviewing maintenance logs, confirming that any required inspections or maintenance actions have been completed, and ensuring that all necessary documentation is in order. This thorough oversight prevents potentially unsafe conditions from being overlooked, thereby contributing to the overall safety of flight operations.

Other roles, like conducting routine maintenance, performing repairs, or leading briefings, do not accurately capture the core responsibilities of the CDI in the context of a pre-flight inspection, which is primarily focused on verification rather than direct maintenance or repair tasks.