Engine Oil System



    The engine of an aircraft, one of the most important component that is designed and build with many moving parts. In order to keep the engine operating at peak performs, the oil system serve a vital role. The engine oil system performs several important functions such as lubrication of the engine's moving parts, cool the engine by reducing friction, removal of heat from the cylinders and carrying away debris and contaminants. There are two type of oil system in the reciprocating engines, the dry-sump and the wet-sump oil system. In the dry-sump system, the oil is contained in a separate tank and uses a pump to circulate the oil throughout the engine. In the wet-sump system, the oil is located in a sump that is an integral part of the engine. 

    The oil pressure gauge provides a direct indication of the oil system operation. it ensures the pressure of the oil supplied to the engine. Green indicates the normal operating range, while red indicates the minimum and maximum pressures. There are three indications that will notice the pilot there are issues with the engine oil system. High oil pressure, low oil pressure or no oil pressure are all indications that notify the pilot of a failure in the engine oil system. Having a high oil pressure indication could mean a clogged oil filter, a blockage in one of the passageways. The lack of oil due to blockage can cause high engine temperature as well. Having a low oil pressure indication could mean an oil leak in the oil system, a failing oil pump or low oil in the system. Having no oil pressure could simply means that the pressure gauge is broken or the engine is so critically low in oil that it may seize in flight. 
    
    In order to mitigate engine oil system failure, it is important for the pilot to check the engine oil level dipstick for proper oil level as part of their preflight inspection. As for maintenance personal, it is important to follow the specific aircraft maintenance manual for schedule maintenance inspection and high time removal and replacement of components to prevent mishaps. 

Word Count: 357

References:

Pilot's Handbook of Aeronautical Knowledge- chapter 7: Aircraft System https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/phak/09_phak_ch7.pdf

https://www.youtube.com/watch?v=cWDCXFwPLIs&list=PLzW-Ub1FWeZzdOHQhNK0U0Ci1a-VRH8IO&index=37



    

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