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Auxiliary fuel pump refers to an electrically powered device that provides fuel supply to an engine, primarily used during the starting process or when the engine driven pump is malfunctioning. Essentially, this auxiliary system ensures that the engine is supplied with sufficient fuel for it to run effectively. Additionally, it acts as a backup plan in case of a breakdown of the main fuel pump, which could lead to engine failure or reduce performance. Overall, the auxiliary fuel pump plays a vital role in maintaining the safety and efficiency of an aircraft or any other machine that relies on fuel for operation.
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