K-219 had a history mishaps (Patreon)

The events of 1973 were eerily similar to the events that sunk the submarine 13 years later.

In 1986, the missile watch standers and the officer in charge (weapons officer) knew tube 6 leaked sea water a month before the September 1986 deployment off the coast of Bermuda and DID NOT TELL THE CAPTAIN! 

The watch was instructed, by the weaps,  to use high pressure air to blow water out of missile tube 6 every day to keep the tube dry. On October 4th, 1986 the missile watch used too much air pressure in the tube and collapsed the fuel tank that resulted in an explosion killing him, the other watch stander and the weapons officer.

Eventually, K-219 would sink due to complications of an escalating casualties that began with not reporting faulty equipment.