In cases of high fuel flow, which action should be taken first?

In situations involving high fuel flow, the most appropriate initial action is to execute the Pel procedure. The Pel procedure refers to a specific protocol designed to address problems related to fuel management and flow, ensuring that the aircraft's performance remains stable and safe. By executing this procedure, the crew can systematically address the issue, monitor fuel flow parameters carefully, and prevent any potential complications arising from high fuel flow conditions.

Taking the right action immediately allows for effectively managing the situation before considering other steps. It ensures the aircraft's systems are maintained within safe operational thresholds, thereby enhancing safety. Other responses might follow after the protocol is executed, but beginning with the Pel procedure focuses on mitigative and corrective actions aimed at stabilizing the situation first.