What is the primary responsibility of the Pilot Monitoring (PM) during flight operations?

The primary responsibility of the Pilot Monitoring (PM) during flight operations is to ensure that all data entered into the aircraft systems, particularly concerning flight parameters and performance, is confirmed and accurately conveyed to the Pilot Flying (PF). This role is critical because it helps maintain safety and efficiency during flight operations. The PM acts as a second pair of eyes, overseeing the actions of the PF and assisting with decision-making by verifying critical inputs, which can prevent errors that may arise from miscommunications or misunderstandings.

While the other responsibilities mentioned, such as communications with air traffic control, weather assessment for landing, and navigation system management, are also important tasks performed by pilots, they do not encompass the primary function of the PM. The key distinction here is the collaborative dynamic between the PM and PF, where data accuracy and confirmation play a vital role in the overall operation and safety of the flight.