Subject area G of 12
Cleaning and Corrosion Control
5-10% of the A&P General test, about 3 to 6 of the 60 questions. The FAA's test standard lists 24 knowledge elements and 8 risk management elements for this area. Here is every one, plus sample questions to try.
What the FAA tests
From the aviation mechanic test standard, FAA-S-ACS-1.
Knowledge: what you must know
- AM.I.G.K1Aircraft cleaning procedures.
- AM.I.G.K2Corrosion theory and causation.
- AM.I.G.K3Types and effects of corrosion.
- AM.I.G.K4Corrosion-prone areas in aircraft.
- AM.I.G.K5Corrosion preventive maintenance procedures.
- AM.I.G.K6Corrosion identification and inspection.
- AM.I.G.K7Corrosion removal and treatment procedures.
- AM.I.G.K8Corrosion preventive compounds (CPC) (e.g., waxy sealants, thin-film dielectrics).
- AM.I.G.K9Selection of optimal CPC and frequency of treatment.
- AM.I.G.K10Use of high-pressure application equipment.
- AM.I.G.K11Improper use of cleaners on aluminum or composite materials.
- AM.I.G.K12Dissimilar metals causing accelerated corrosion and role of protective barriers to mitigate this risk.
- AM.I.G.K13Conversion coatings.
- AM.I.G.K14Materials used for protection of airframe structures.
- AM.I.G.K15Primer materials.
- AM.I.G.K16Topcoat materials.
- AM.I.G.K17Surface preparation for a desired finishing material.
- AM.I.G.K18Effects of ambient conditions on finishing materials.
- AM.I.G.K19Effects of improper surface preparation on finishing materials.
- AM.I.G.K20Regulatory requirements for replacing identification, registration markings, and placards.
- AM.I.G.K21Inspection of aircraft finishes.
- AM.I.G.K22Safety practices/precautions when using finishing materials (e.g., PPE, fire prevention).
- AM.I.G.K23Finishing materials application techniques and practices.
- AM.I.G.K24Control surface balance considerations after refinishing.
Risk management: hazards you must be able to spot and manage
- AM.I.G.R1Health concerns when using paints, solvents, finishing materials, and processes.
- AM.I.G.R2Ventilation.
- AM.I.G.R3Identification of materials and processes to be used for cleaning or corrosion treatment on a given part or structure to prevent further damage.
- AM.I.G.R4SDS PPE instructions for products during removal and treatment of corrosion.
- AM.I.G.R5Working with flammable chemicals.
- AM.I.G.R6Disposal of chemicals and waste materials.
- AM.I.G.R7Use of PPE when working with paints and solvents.
- AM.I.G.R8Application of finishing materials.
Try 0 sample questions
Sample questions for this area are on their way. The full course covers it already.
Practice all of cleaning and corrosion control
The full course has questions on every element listed here, with an explanation and FAA source for each.