What is the correct action regarding fuel flow if there is an uncommanded engine power reduction?

In the event of an uncommanded engine power reduction, checking that fuel is flowing is the most prudent first step. This action ensures that the engine is receiving the appropriate amount of fuel to maintain power. If there is a fuel blockage or any other issue that interrupts the fuel flow, it could lead to further power reduction or engine failure. Therefore, verifying fuel flow helps to diagnose whether the issue lies in fuel delivery or in another area of engine operation.

Once you confirm that fuel is flowing, you can then proceed to investigate other potential causes for the power reduction, such as engine system malfunctions or sensor issues. This systematic approach is essential for maintaining safety and effective troubleshooting in flight operations.