During the checklist review, what is primarily checked for safety compliance?

The focus of safety compliance during the checklist review is primarily on the aircraft systems and configurations. This encompasses a thorough examination of critical systems that ensure the aircraft is functioning correctly and is ready for safe operation during flight. Properly configured aircraft systems include the flight control systems, navigation equipment, and communication devices, among others. Ensuring that these systems are operational and configured as necessary is crucial for maintaining safety standards, as any malfunction or misconfiguration could lead to serious operational risks.

While cabin temperature, flight crew interaction, and passenger luggage are important aspects of overall flight safety and comfort, they do not have the same direct impact on the core operation of the aircraft. Cabin temperature is generally a comfort issue rather than a safety concern. Flight crew interaction is vital for effective communication and coordination but does not pertain to safety compliance in the operational sense. Passenger luggage is relevant for weight and balance calculations and secure stowage, yet it is the aircraft systems and configurations that are paramount during the safety compliance checks outlined in the checklist review.