Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task G. Cleaning and Corrosion Control

AM.I.G.K7

Knowledge

Corrosion removal and treatment procedures.

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - General p. 8-18
Chapter 8: Cleaning & Corrosion Control › Corrosion of Aluminum & Aluminum Alloys › Treatment of Unpainted Aluminum Surfaces
when corrosion products have not been completely removed, it is important that the solution penetrate to the bottom of all pits and underneath any corrosion that may be present. Thorough brushing with a stiff fiber brush loosens or removes most ... coatings, as required in accordance with the aircraft manufacturer’s procedures. Restoration of paint coatings must immediately follow any surface treatment performed. In any case, make sure that corrosion treatment is accomplished or is reapplied on the same day that…
Aviation Maintenance Technician Handbook - General p. 8-19
Chapter 8: Cleaning & Corrosion Control › Corrosion of Magnesium Alloys › Treatment of Wrought Magnesium Sheet & Forgings
Complete mechanical removal of corrosion products is to be practiced insofar as practicable. Limit such mechanical cleaning to the use of stiff, hog bristle brushes and similar nonmetallic cleaning tools (including nonwoven abrasive pads), particularly if treatment ... cause more trouble than the initial corrosive attack. Corroded magnesium may generally be treated as follows: 1. Clean and strip the paint from the area to be treated. Paint stripping procedures were discussed earlier in this chapter and are also…