Checklist of evidence required You then need to: Present your findings in an organised technical report which should include: Annotated images of the examined components. Detailed annotated images of failed surfaces/components and information about why the failure occurred, with reference to mechanical design principles. A range of design improvements for the failed components, with reference to mechanical design principles to justify the suggested modifications. A portfolio containing a log book and report including annotated images and commentary, test results, sketching. learner observation record etc. Criteria covered by this task: Unit/Criteria reference 25/C.D3 25/C.M4 25/C.M5 25/C.P6 25/C.P7 To achieve the criteria you must show that you are able to: Evaluate, using language that is technically correct and of a high standard, the results from safely conducted and accurate checks and tests to establish how components failed in service, recommending a design solution from a range of alternatives. Conduct a visual inspection check and at least one test safely and accurately on components that have failed in service. Analyse, using the results, how each component failed and justify how each component's design could be improved. Conduct a visual inspection check and at least one test safely on components that have failed in service. Explain, using the results, how each component failed and how each component's design could be improved.