In iABG's testing laboratory, specific structural inspections and analyses had to be carried out using non-destructive testing methods - among other things, we tested for cracks; even microscopically small defects are noticeable to us through eddy current testing. We were also able to detect defects in the metallic components with the aid of ultrasonic testing, because we determined the size and position of the defects by measuring the transit time of the ultrasonic echo. Subsequently, we prepared extensive documentation for iABG on all anomalies. The task was a real challenge because we had to put our foot down in only 3.5 months and complete the work. Originally, iABG had calculated a maximum margin of error of 15% for the disassembly of the wings. We were finally able to deliver a defect rate of 0% in the structural assembly, as a result of which all structural components could be handed over to the customer without any defects. Thus, all components could be subjected to the (NDT) tests.