What is the primary function of the PBS600 device?

The primary function of the PBS600 device centers around safety-related functions. This device is designed to enhance various aspects of flight safety, such as monitoring safety equipment, managing safety protocols, and ensuring compliance with aviation regulations. Its crucial role ensures that the safety of passengers and crew is maintained throughout the flight operation, emphasizing its significance in the overall safety management system of an airline.

While the other options touch on important aspects of flight operations, they do not reflect the core purpose of the PBS600. For instance, managing in-flight entertainment is typically handled by separate systems focused on passenger experience, and seating configuration is generally optimized through different software designed for flight operations management. Logging crew duty times is also critical for compliance and operational integrity but would be managed by other specialized tools rather than the PBS600.