Which situation would most directly require referencing a NOTAM?

The situation of checking airspace restrictions due to temporary hazards is directly tied to the purpose of NOTAMs (Notices to Airmen). NOTAMs provide critical information regarding changes to the status of navigational aids, restricted airspace, temporary flight restrictions, and other essential information that can affect flight safety and planning.

When a pilot needs to determine if there are any temporary hazards, such as construction at an airport, active military operations, or other airspace changes, NOTAMs serve as the primary source of timely and relevant information. They are designed to inform pilots about conditions that might not be included in standard charts and publications.

In contrast, while planning a cross-country flight, reviewing aircraft maintenance logs, or calculating fuel requirements may involve various types of planning and preparation, these tasks do not directly rely on up-to-date advisories or restrictions present in NOTAMs. Thus, they are not as fundamentally connected to the immediate need for situational awareness regarding airspace and related hazards as the reference to NOTAMs is.