When performing a post-flight inspection, you discover the bypass indicator for the engine oil filter is indicating that the filter is in bypass. Identify reasons that would cause the oil filter to go into bypass. Explain what procedures you will take to determine the airworthiness of the lubrication system and the procedures necessary to return the engine to service. Note: This research assignment simulates a problem that an FAA examiner may provide during the oral or practical portion of the Powerplant Exam.
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