Which of the following items is NOT part of the expected paperwork at the gate?

The maintenance checklist is not typically part of the expected paperwork at the gate. This checklist is primarily managed by maintenance personnel to ensure that aircraft meet safety and operational standards before departure. While it is critical to flight safety, it is usually completed prior to arriving at the gate and does not need to be present in the paperwork at that point.

In contrast, the other items listed are essential documents that must accompany a flight at the gate. The weather package provides updated meteorological information crucial for flight planning and safety. The flight plan is a detailed outline of the intended route and is required for air traffic control. The release is an authorization for the aircraft to depart, signifying that all necessary pre-flight checks and documentation are complete. These items are all key components in ensuring the flight can operate safely and efficiently.