Aircraft Engine Removal and Installation Procedures
Removing and installing an aircraft engine can be a very complex and lengthy procedure. Whether the engine has exceeded its lifespan, needs thorough inspection, or has faced internal failure, there inevitably comes a time in which the entire engine needs to be removed from the aircraft. As every aircraft and jet engine has different parts and procedures, there is not a manual for removal steps that encapsulates every type. That being stated, there does exist general removal procedures and steps that must be done during the process. In this blog, we will discuss some of these general tasks while removing an aircraft engine.
One of the first considerations and steps that should be undertaken before, and during, the removal of the aircraft engine is to fully understand and map out the setup and assembly of the engine. There is often great rhyme and reason put into the assembly of the engine wiring and components. Taking notes, photographing, labeling, and mapping out how the engine is put together will make reassembly much easier for installation.
In preparation for the engine removal, it is extremely important to ensure that the magneto switch (if one is present) is off so that the engine cannot accidently turn on. All valves should be closed and the battery removed as to prevent fires or damage. Lastly, keeping fire extinguishers and other safety measures ready and on hand is pertinent for responding to any emergency.
Next, the engine oil should be drained and all relating parts cleaned and set aside. Next comes the removal of all electrical conduits, disconnects, and other components. Other parts that should be removed include the engine controls, disconnect lines, etc. Once parts are removed and the engine is ready to be lifted off, the engine should be hoisted with a secure sling. After the fasteners are removed, the engine can be gradually moved away until it is free and can be placed on a stand.
After the removal of the engine, careful care should be put into the inspection of each part. This allows for every component to be checked and replaced as needed, many being overlooked or unable to be reached during normal checkups and inspections. After inspection, cleaning, repair, and replacement of engine as needed, the engine can then be reassembled and attached so that the engines can safely and optimally operated.
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