What is the first step in preparing an aircraft for down traffic?

The first step in preparing an aircraft for down traffic involves taking fuel samples to test the flashpoint. This procedure is crucial for safety because it ensures that the fuel’s ignition point is within safe limits. Testing flashpoint helps detect the presence of contaminants that could affect engine performance or pose a fire hazard. This is particularly important after flight operations, where fuel may have been subjected to various conditions.

While checking gauges, removing ordinance, and performing visual inspections are all essential tasks in aircraft maintenance and safety procedures, they follow the initial step of ensuring fuel safety. Addressing fuel integrity minimizes risks associated with fuel volatility and reinforces safe operational practices before conducting any other assessments or maintenance. Thus, starting with fuel samples is a critical measure in the overall checklist for preparing an aircraft for down traffic.