When are fuel samples storage not required?

• A. Ferry flights
• B. International flights
• C. Domestic flights
• D. Training flights

Answer: (A)

Fuel sampling is a quality control practice used to verify fuel integrity and to trace contamination back to a source if a problem arises. In typical revenue operations, especially international or domestic flights and training flights, there are multiple fueling events, different lots or suppliers, and formal documentation requirements that keep a sample on hand for a set period.

Ferry flights are simply a move from one base to another with minimal fueling activity and usually a single fuel lot from a known supplier. Because there’s no ongoing revenue service or complex fueling chain to document, retaining a fuel sample isn’t required for that one leg.