Half of DCV marine incidents between 2019-2022 reported shortfalls in the operation of the vessel.  

In 2022 one third of incidents were due to shortfalls in vessel control and navigation (Figure 12). This is consistent with the 2019-2022 data which shows that 4 of the 5 top operational issues for every vessel class involved control and navigation operational failure (Table A6).  This was followed by shortfalls in operational access (61) and communication (34). 

Figure 13 shows a breakdown of vessel control and navigation and other operational occurrence types. 

In 2022, of the 347 occurrence types related to vessel control and navigation, 131 (37.8%) were associated with shortfalls in lookout/collision avoidance, 82 (23.6%) with vessel handling/loss of control and 40 (11.5%) with berthing/unberthing (Figure 13).