What is typically checked during preflight inspections?

During preflight inspections, the focus is primarily on ensuring that all emergency equipment and service items are in proper working order. This is crucial for the safety of the aircraft and its passengers, as any malfunctioning emergency equipment could hinder the crew's ability to respond effectively in an emergency situation. A thorough check includes items like life vests, oxygen masks, fire extinguishers, and other essential safety gear.

While passenger seating arrangements may be reviewed as part of the boarding process, this is not a primary focus during preflight inspections. Weather conditions are important but are typically assessed separately from the inspection of the aircraft itself. Additionally, checking a pilot's personal belongings is not a standard part of the preflight checklist, as the focus remains on the aircraft's operational safety and readiness. Thus, the emphasis on emergency equipment and service items during preflight inspections is critical for ensuring the overall safety and preparedness of the flight.