Which of the following is NOT a function of the Latrine Service Truck?

The Latrine Service Truck is primarily responsible for handling lavatory services for aircraft. Its main functions include emptying lavatory waste, filling fresh water tanks, and rinsing out tanks to ensure sanitation and proper functioning.

Replacing damaged seats falls outside the scope of the truck's designated functions. This task pertains to aircraft maintenance and interior upkeep, which involves skilled technicians addressing physical damage to the aircraft's seating. Thus, it’s clear that the role of the Latrine Service Truck does not encompass seat replacement, making this option the correct choice as it does not align with the primary responsibilities of the truck.