A method for completeness inspection of an assembled structure, said structure comprising a body shell and mounted parts, to check whether said structure has all the mounted parts that it should have, said method comprising the following steps: a) Scanning the whole assembled structure with an active ranging scanner, thus obtaining a point cloud forming a 3D picture of the whole structure, wherein said active ranging scanner has a given resolution E; b) Obtaining a 3D model of the whole structure as it should look like in the assembled state based on CAD data modelling the assembled structure, said 3D model including a set of desired mounting parts (202, 203); c) Subdividing said 3D picture into a number of ever smaller picture comparison areas and said 3D model into a number of ever smaller corresponding model comparison areas, while, after each subdivision, overlaying each corresponding picture comparison area and model comparison area using a best fit algorithm, said best fit algorithm trying to match salient geometrical features of both areas by shifting and rotating and then outputting a deviation value D representing the residual deviation in the positions of the matched geometrical features, wherein said subdividing is stopped when the deviation value D is smaller than or equal to the resolution E, thus obtaining a set of final picture comparison areas and corresponding final model comparison areas; d) For each final model comparison area, identifying desired mounting parts (202, 203) located therein and searching for mounted parts in the corresponding final picture comparison area that match said desired mounting parts (202, 203); and e) Identifying the desired mounting parts, which have no matching mounted part in the final picture comparison areas, as missing from the assembled structure, wherein the method further comprises the step between step b) and step c) of coarse fitting the whole 3D picture to the whole 3D model.. a) Scanning the whole assembled structure with an active ranging scanner, thus obtaining a point cloud forming a 3D picture of the whole structure, wherein said active ranging scanner has a given resolution E; b) Obtaining a 3D model of the whole structure as it should look like in the assembled state based on CAD data modelling the assembled structure, said 3D model including a set of desired mounting parts (202, 203); c) Subdividing said 3D picture into a number of ever smaller picture comparison areas and said 3D model into a number of ever smaller corresponding model comparison areas, while, after each subdivision, overlaying each corresponding picture comparison area and model comparison area using a best fit algorithm, said best fit algorithm trying to match salient geometrical features of both areas by shifting and rotating and then outputting a deviation value D representing the residual deviation in the positions of the matched geometrical features, wherein said subdividing is stopped when the deviation value D is smaller than or equal to the resolution E, thus obtaining a set of final picture comparison areas and corresponding final model comparison areas; d) For each final model comparison area, identifying desired mounting parts (202, 203) located therein and searching for mounted parts in the corresponding final picture comparison area that match said desired mounting parts (202, 203); and e) Identifying the desired mounting parts, which have no matching mounted part in the final picture comparison areas, as missing from the assembled structure,