ChromicSulphuric Acid Anodizing of Aluminum Copper Plating

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 Part 2 ✈ Chapter 3 - Checklists Page 113 Part 2 - Airworthiness Audit Policy and Procedures MRA – 1 st Edition September 1998 References Result A-9 Are parts rinsed in clean, cold water? QPM OK FDG NA Items Certified – Completed by:

3.8.8 Dichromate Treatment of Magnesium Alloys

References Result A-1 Are specifications and procedures available to the operators and are they in use? QPM OK FDG NA A-2 Are machining or forming operations completed prior to the dichromate treatment? QPM OK FDG NA A-3 Is the solution concentration analysed? QPM OK FDG NA A-4 Are analysis records available? QPM OK FDG NA A-5 Are the temperature gauges calibrated? QPM OK FDG NA A-6 Are calibration decals current? QPM OK FDG NA A-7 Is the method used to remove surface contamination acceptable? QPM OK FDG NA A-8 Are parts rinsed thoroughly following the dichromate treatment? QPM OK FDG NA A-9 Are parts dried thoroughly following rinsing? QPM OK FDG NA Items Certified – Completed by: Page 114 Part 2 ✈ Chapter 3 - Checklists MRA – 1st Edition September 1998 Part 2 ✈ Chapter 2 - Airworthiness Audit Policy and Procedures

3.8.9 Heat Treatment of Aluminum Alloys Air Furnace

References Result A-1 Does the manufacturer have qualified personnel to inspect and control the heat-treatment process? QPM OK FDG NA A-2 Are process instructions available to the operators and inspectors? QPM OK FDG NA A-3 Are temperature uniformity surveys carried out? Are results of surveys recorded and kept on file? QPM OK FDG NA A-4 Is pyrometric testing and calibration of equipment carried out? QPM OK FDG NA A-5 Are parts cleaned before any heating operation? Are parts racked to allow circulation? QPM OK FDG NA A-6 Are parts quenched as rapidly as possible? Is water agitated during quenching? QPM OK FDG NA A-7 How is the refrigeration temperature controlled for the storage of heat-treated parts? QPM OK FDG NA A-8 Is batch number or work order number, time in and time out, and date recorded on temperature instrument charts? QPM OK FDG NA Items Certified – Completed by:

3.8.10 Heat Treatment of Aluminum Alloys Salt Bath

Items References Result A-1 Does the manufacturer have personnel qualified to inspect and QPM OK FDG NA