Abstract
This project note summarizes recent reports and advances in the scientific literature on additive manufacturing (AM) of spare parts, with particular relevance to the maritime industry. The note begins in section 1.1 with a few comments on the adoption of AM across all industries. Section 2 is dedicated to the use of AM in the after sales market. This section is organized in three parts, focusing on 1) the state of the art for AM spare parts in the maritime industry 2) experiences with onboard printing and 3) lessons from AM spare part production in other sectors. The note concludes in section 3 with a short summary of the findings.