Which of the following roles does an observer perform in the cockpit?

The role of an observer in the cockpit primarily involves evaluating procedures for authorized personnel. This position is crucial for maintaining safety and compliance with aviation regulations. Observers monitor and assess how procedures are being followed during flight operations, ensuring that all crew members adhere to the established protocols. This observational role helps in identifying areas for improvement, facilitating training opportunities, and ensuring that safety standards are met.

In contrast, assisting with flight navigation involves active participation in managing the flight path and related systems, which is not within the scope of an observer. Deciding on flight schedules is a responsibility typically held by operations management rather than individuals in the cockpit during flight, as this pertains to overall scheduling rather than observational duties. Conducting preflight inspections is a hands-on task usually performed by pilots or maintenance crews to ensure aircraft readiness, rather than an observational role. Thus, the observer's focus on evaluating procedures supports the overall safety and efficiency of cockpit operations.