Which task should be completed during descent when a plane is going to RON?

The correct choice involves draining the beer and wine drawer, which is a standard procedure when preparing for a 'Remain Overnight' (RON) situation. This task is crucial for ensuring that no perishable or potentially hazardous items are left on board overnight. Alcohol can expand in warmer temperatures and may pose a safety risk if left unattended in the cabin area.

Choosing the correct answer reflects an understanding of onboard safety and operational compliance. Procedures like draining the beer and wine drawer demonstrate the importance of maintaining a safe and clean environment for both passengers and crew. It also aligns with protocols designed to prevent any undesirable outcomes associated with leftover alcoholic beverages.

While adjusting the cabin temperature, checking passenger seatbelts, and managing the in-flight entertainment system are indeed important operational tasks, they are typically focused on immediate flight comfort and safety rather than on securing the aircraft and ensuring readiness for an overnight stay. Thus, they are not as relevant as the task of draining the beer and wine drawer in the context of preparing for a RON situation.