Which of the following is NOT part of the responsibilities before inspection and loading?

Weighing the aircraft is not typically considered a responsibility before inspection and loading. The primary purpose of weighing an aircraft generally occurs during maintenance checks or to calculate weight and balance for the flight, rather than being a standard preparatory step before loading cargo.

In contrast, cleaning the cargo is essential to ensure that no contaminants or debris hinder the loading process or damage the aircraft or other cargo items. Marking the cargo is important for identification and safety reasons, ensuring that all cargo is correctly labeled for handling and transport. Documenting the shipment is equally crucial as it involves keeping records that confirm the contents and condition of the cargo, which is vital for both compliance and accountability throughout the transport process.

Thus, while all of these responsibilities are important aspects of preparing for flight, weighing the aircraft falls outside the purview of activities specifically related to the immediate tasks before inspection and loading.