FAA Powerplant Written Practice Test

What should be done if metallic particles are found in the oil filter during inspection?

1. Ignore the findings

2. Continue with the flight as planned

3. Identify and correct the cause before flight

4. Clean the filter and resume operation

The correct answer is: Identify and correct the cause before flight

Finding metallic particles in an oil filter during inspection is a significant indicator of potential issues within the engine or its components. Metallic debris can be a sign of excessive wear or failure of engine parts, such as bearings, gears, or the compressor. Ignoring these findings or continuing with the flight as planned poses a severe risk to the engine's integrity and overall safety, potentially leading to more catastrophic failures during operation. Identifying and correcting the cause of the metallic particles is essential to ensure that it is safe to operate the aircraft. This typically involves conducting further inspections to determine the source of the debris, which could involve disassembling parts of the engine or examining other system components for signs of wear or damage. Addressing the root cause not only prevents the immediate risk of engine failure but also extends the life of the engine and improves safety for future flights. Taking proactive measures in aviation maintenance is crucial for reliability and the safety of the aircraft and its occupants.