The article presents an in-depth analysis of the most significant accident ever in Constanta harbour using a method that goes beyond the chain of events that trigger an accident. In the introductory part, the authors present the features of the Black Sea basin, highlighting the eventual dangers to the ship's safety. Then the work presents the Systems Theoretic Accident Model and Process - STAMP method in brief; after that follows the modelling and analysis of the accident of You Xiu ship, and the scoop culminates with some short concluding remarks. The article serves as a base for further developments in accident analysis and an awareness instrument for scholars and practitioners regarding the general safety culture when operating a ship. Nevertheless, the work in this regard requires further research, and a comparative study using different methods and approaches should add more value to the actual efforts of the authors.