What should be done if both fuel samples are found to be bad?

When both fuel samples are found to be bad, the appropriate action is to report the findings to maintenance and Quality Assurance (QA). This step is crucial because improper fuel can lead to significant operational issues, including engine performance problems or failures. By notifying maintenance, the necessary procedures can be initiated to assess the situation, troubleshoot potential sources of contamination, and prevent the use of defective fuel in the aircraft. Involvement of QA ensures that a systematic approach is taken to investigate the issue, potentially leading to corrective actions that might need to be implemented across larger operations to enhance safety and compliance with standards.

This response creates a clear line of communication that ensures all critical personnel are informed and can take action to resolve the underlying issue. Discarding the samples without reporting or seeking further analysis could overlook potential systemic issues or risks, compromising the safety and operational integrity of the aircraft.