Decisions don't have to be a dilemma; rather, an opportunity.

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Metal in the oil filter and a poor oil analysis report generated attention.  In this aircraft owner's mind, attention to detail was critical.

The IO-520 had performed well for over 1800 hours, but when an engine speaks, we should listen.

So, the engine was pulled for overhaul; the engine shop of choice for the customer was Western Skyways, in Colorado.

The attention to detail included thorough scrubbing of the nacelle, and inspection of critical components.

Engine controls were replaced, wiring as needed in preparation of the fresh engine.  The engine came back a little lighter than when it left.  It's true, a 550 weighs less than a 520.  Displacement does mean a measurement of air....  Installation, with the D'Shannon Aviation baffles, was completed.