Most aircraft MROs understand the value of pretreating the metal surfaces of parts to remove corrosion, grease, residue, old coatings, or to roughen the surface of metals prior to coating. By ensuring the items are cleaned down to bare metal, aircraft MROs can avoid costly warranty issues that result when coatings peel, flake, bubble, or otherwise fail prematurely. The surface conditioning, cleaning, and profiling of jet engine parts may also be required to perform specific maintenance in accord with their operation specifications as FAA Certified Repair Stations.
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