This report is a final thesis conducted by two students at the Academy of Innovation for Design and Technology at Ma ̈lardalens university in Va ̈ster ̊as, in collaboration with Nextjet. The purpose of this investigation is to explore the different ways in which we can improve the inspection of “Placards & Markings” for Nextjet’s SAAB- 340 aircrafts. This assesment is required by the government in the process of renewing/extending the ARC-airworthiness Review Certificate of the planes. The ARC-process is conducted according to the rules and regulations of the EASA, one of which is a review of the plane’s airworthiness. In this thesis we will explore the plausible ways of inspection while compa- ring and contrasting these different methods. The intent is to find the most adequate and reliable procedure at the lowest cost, with high security. We will focus on three chosen methods: • Visual inspection • ITS - intelligent transport system • Inspection of the aircrafts exterior with the help of a drone New technologies like ITS and drones are on the rampage and has many advantages. Both ITS and drones enables verifiability and are time-efficient methods. Despite this, the visual inspection method is currently most sui- table for Nextjet and their inspection of the ”Placards & Markings”. Visual inspection is an inexpensive alternative that requires no sophisticated equip- ment. A technical instruction must, according to the studied literature, have a structured format. Consideration should be given to the human factors that come into play during a visual inspection, which can be prevented if kept in mind when designing the instruction. The technical instruction that we designed needs to be tested in its real environment to properly evaluate its function.