Chemical Conversion Coatings for Aluminum Alodine: Brush

Part 2 ✈ Chapter 3 - Checklists Page 111 Part 2 - Airworthiness Audit Policy and Procedures MRA – 1 st Edition September 1998 References Result A-3 Are parts rinsed with deionized water? QPM OK FDG NA A-4 Is the solution concentrate analysed periodically? QPM OK FDG NA A-5 Is the immersion time monitored? QPM OK FDG NA A-6 Are parts visually inspected for a complete coverage of coating? QPM OK FDG NA Items Certified – Completed by:

3.8.6 ChromicSulphuric Acid Anodizing of Aluminum

References Result A-1 Is excess oil or grease removed by vapour degreasing or is an alternative approved method being used? QPM OK FDG NA A-2 Are parts supported in aluminum alloy or titanium racks in such a way so as to facilitate drainage and prevent solution entrapment? QPM OK FDG NA N OTE : Racked parts must be tightly clamped and spaced far enough apart to prevent shading. A-3 Is the anodising current controlled correctly? QPM OK FDG NA A-4 Is post-anodic treatment adequately controlled? QPM OK FDG NA A-5 Are quality control inspections of the equipment conducted regularly? QPM OK FDG NA A-6 Are solutions analysed periodically? QPM OK FDG NA Page 112 Part 2 ✈ Chapter 3 - Checklists MRA – 1st Edition September 1998 Part 2 ✈ Chapter 2 - Airworthiness Audit Policy and Procedures References Result A-7 Are analysis records kept on file? QPM OK FDG NA A-8 Are solutions adequately controlled to prevent contamination? QPM OK FDG NA Items Certified – Completed by:

3.8.7 Copper Plating

References Result A-1 Are specifications and procedures available to the operators and are they used? QPM OK FDG NA A-2 Is a copper cyanide bath used for depositing metal? QPM OK FDG NA A-3 Is copper plating applied directly to the basic metal or following the copper strike? QPM OK FDG NA A-4 Are parts examined for plating adherence, crystalline appearance, porosity, blisters and pits? QPM OK FDG NA A-5 Are tanks clean and in good working condition? QPM OK FDG NA A-6 Are calibration decals affixed to the equipment? Are they current? QPM OK FDG NA A-7 Is embrittlement relief of plated parts performed when parts are not subsequently heat-treated or brazed? QPM OK FDG NA A-8 Are areas of parts not requiring plating masked off? QPM OK FDG NA