Protective Treatment Zones - Wing
 Figure 002
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 Vertical Stabilizer - Erosion Protection Cover
 Figure 003

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 B. Aircraft Internal Areas The internal areas of the aircraft are divided into four categories. These categories, which have different protection requirements, are as follows:
 (1) Category A: - Areas which have contact with air and water.
 (2) Category B: - Fuel tanks.
 (3) Catagory C1: - Areas where water/condensation is possible.
 (4) Catagory C2: - The area below STGR32 and the floor structure around the doors, galleys and toilets. Areas where contact with hydraulic fluid, lubricants and/or waste water is possible and inaccessible areas. 
R  **ON A/C 051-099, 
R R R R R R R R R R R  A. Unpainted Areas The protective treatment build-up is not the same for all aircraft structures. The areas that are made of corrosion resistant material, or areas where the performance of the component would change, are not painted. These areas include: - the leading edges of the slats and the engine inlet cowl, - the external surfaces of the engine pylon that are made of corrosion resistant materials, - passenger and cargo-compartment door scuff-plates, - APU exhaust, - angle of attack sensors and static ports.

R R R R  B. Aircraft Internal Areas The internal areas of the aircraft are divided into four categories. These categories, which have different protection requirements, are as follows: 
R R  (1) Category A: - Areas which have contact with air and water. 
R R  (2) Category B: - Fuel tanks. 
R R  (3) Catagory C1: - Areas where water/condensation is possible. 
R R R R  (4) Catagory C2: - The area below STGR32 and the floor structure around the doors, galleys and toilets. Areas where contact with hydraulic fluid, lubricants and/or waste water is possible and inaccessible areas. 
R  **ON A/C ALL
 3. Types of Protective Treatments______________________________
 A. Pretreatments The pretreatment of a material increases the corrosion resistant properties of the material and provides a good surface for the adhesion of the paint coatings. The chemical or galvanic applied film passivates the surface and prevents corrosion.
 B. Paint Coatings A layer of primer paint is applied to all of the general structure to protect it against corrosion. The primer contains corrosion inhibitant to prevent a chemical attack from corrosive materials. A polyurethane top layer is applied to protect the structure from chemical and mechanical damage.
 C. Special Coatings A water repellant coating is applied in areas where water or condensation may collect. A corrosion preventive compound is applied in areas where the structure may be effected by corrosion.

 PROTECTIVE TREATMENT - CLEANING/PAINTING
________________________________________
 TASK 51-21-00-916-001
 Wax and Polish Protection on Unpainted Light Alloy Areas
 WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______
 ONLY WITH A GOOD SUPPLY OF AIR.
 OBEY THE MANUFACTURERS INSTRUCTIONS.
 PUT ON PROTECTIVE CLOTHING.
 DO NOT GET THEM IN YOUR MOUTH.
 DO NOT SMOKE.
 DO NOT BREATHE THE GAS.
 THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT.
 GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.

 WARNING : IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES:
_______
 -FLUSH IT AWAY WITH CLEAN WATER
 -GET MEDICAL AID.
R NOTE : Do not polish or wax the slats in the unpainted areas of the leading
____ R edge.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform
 No specific lint-free cloth

 B. Consumable Materials

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 05-025 USA MIL-P-6888
　
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