What is required before each flight according to the FOM?

The correct answer highlights the importance of conducting a thorough crew briefing before each flight, as mandated by the Flight Operations Manual (FOM). This briefing is crucial because it ensures that all crew members are aware of the flight plan, operational procedures, safety measures, and any specific circumstances that might affect the flight. It enhances communication and coordination among the crew, which is vital for maintaining safety and operational efficiency.

The emphasis on crew briefings stems from the need to ensure that everyone on the team is aligned on their roles, responsibilities, and the overall mission of the flight. This preparation can significantly reduce misunderstandings and contribute to a safer flight environment.

Other options, while important for overall flight operations, do not encapsulate the specific requirement stated in the FOM regarding what must happen before each flight. They may pertain to aspects of safety and efficiency but do not directly address the mandatory nature of the crew briefing.