Technical occurrence types on DCVs
The most frequent technical incident occurrence sub-type on DCVs was ‘power, propulsion and steering’. The next most frequent sub-types were vessel systems, engineering systems, structure and access. The increase in incidents involving power, propulsion and steering failures in 2021 was inconsistent with other technical sub-types, and disproportionately greater than the increase in total incident reports from DCVs in 2021.
Technical occurrence types on RAVs and foreign-flagged vessels
Two-thirds of technical occurrence types on RAVs and foreign-flagged vessels involved ‘power, propulsion and steering’. The next most frequent sub-types were engineering systems, ship systems and cargo and stores. Of the serious incidents involving power, propulsion and steering, approximately half involved main engine and gearing failure.
