What is the primary function of leveling equipment when weighing aircraft?

The primary function of leveling equipment when weighing aircraft is to ensure accuracy by leveling the aircraft. This process is crucial because when an aircraft is not level, it can lead to inaccurate weight measurements. Leveling allows the weight to be distributed evenly across the weighing equipment, which leads to a precise reading of the aircraft's weight.

By maintaining the aircraft in a level position during the weighing process, technicians can avoid any discrepancies that might arise from an unlevel stance, such as incorrect load calculations, which can affect flight performance and safety. Therefore, the use of leveling equipment is integral to obtaining reliable weight data, which is essential for various operational aspects of aviation, including compliance with weight and balance regulations.