How many blocks are designated for a fuel sample on the Daily card?

A fuel sample is critical for ensuring the quality and safety of the fuel used in aircraft operations. The Daily card for aircraft inspections or maintenance typically designates two blocks specifically for recording the results of the fuel sample. This allows personnel to document the findings of the fuel tests adequately, including both the pre-flight checks and any additional samples taken during or after fueling operations. The ability to track and manage this information accurately is essential for maintaining flight safety and adhering to regulatory requirements. Thus, indicating two blocks for fuel sample documentation on the Daily card is an established practice that ensures thorough oversight of fuel quality.