We changed several coding systems to match the PLM software we used in the past and we tried to manage them in the easiest way possible. However, the search engine of this website needs a database with a unique coding system to work properly. For this reason, it is perfectly normal to find a discrepancy between the code inside the document and the name of the file. In particular, you could notice a different code on the manual footer than the one in the file name or in the attachment footer, which is a normal consequence of our past coding systems.