What should you do if your fuel sample is good after draining a bad sample?

After draining a bad fuel sample, if the subsequent sample is good, it indicates that the issue with the fuel may have been isolated. Continuing to take additional samples is a prudent step to further confirm the quality of the fuel before proceeding with any operations. This allows for the verification of the fuel condition, ensuring that it remains free of contaminants and is safe for use in the aircraft.

The practice of taking multiple samples also aligns with best safety practices in aviation maintenance. It ensures that any transient issues related to contamination can be thoroughly assessed. This cautious approach helps in maintaining the operational integrity of the aircraft by confirming that the input fuel meets all necessary quality standards.

While stopping the inspection, filing a report, or changing the aircraft's fuel may seem like viable options, they do not provide an additional verification step to bolster confidence in fuel quality. Continuing to sample allows for a more informed decision regarding whether the fuel system is clear of contaminants, reinforcing safe operational practices.