On Feb 7th, HNLMS Rotterdam L800, a Landing Platform Dock amphibious warfare ship of the Royal Dutch Navy anchored on the south coast of England. In that procedure it lost an anchor.
A spokesman for the Navy explained the event as follows: "During a planned anchor manoeuvre near Plymouth, part of the anchor installation did not work properly, so we left the anchor at the anchor position. There were no casualties and no other damage. The crew is "planning to lift the anchor soon and take it back on board".