"Almirante Latorre" was sent to the United Kingdom for a modernization at the Devonport Dockyard in 1929. It lasted for quite some time, but finally left for Valparaíso nearly two years later, on 5 March 1931, and arrived on 12 April. Not long after it returned, crewmembers aboard "Almirante Latorre" instigated a major mutiny. The revolt was a result of the country's economic woes in the midst of the Great Depression and a recent pay cut. Most of the navy's ships joined "Almirante Latorre" in the mutiny, but they surrendered five days after it began when an air strike was mounted by government forces. "Almirante Latorre" ended up in the Bay of Tongoy with .