What should a pilot do if the IBF light illuminates?

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When the IBF (Inlet Barrier Filter) light illuminates, it indicates that there may be a restriction in airflow due to debris accumulation in the filter. The appropriate response is to push the IBF PBA (Power Boost Activator) to initiate a system reset or engage the alternate filtering option, which can help ensure proper airflow and engine performance. This action is essential for maintaining engine efficiency and preventing potential engine damage or failure caused by reduced airflow.

Ignoring the warning or waiting until landing to address it could jeopardize safety, as the restriction may lead to engine performance issues. Reducing altitude may not directly resolve the problem related to the IBF light and is not an effective response in this situation. Checking the fuel status, while important for overall flight operations, does not address the specific issue indicated by the illumination of the IBF light.