In 1900, four engineering officers were seriously injured while disassembling a pipe to repair it. They had disassembled it too quickly, and were severely scalded by escaping steam. In June and July that year, she participated in extensive joint maneuvers conducted with the Mediterranean Squadron; she was still Ménard's flagship during this period. The Northern Squadron initially held its own maneuvers in Brest, which included a simulated blockade of the squadron in Brest, after which the squadron made mock attacks on the island of Belle Île and nearby Quiberon. In early July, the squadron met the Mediterranean Squadron off Lisbon, Portugal before the two units steamed north to Quiberon Bay and entered Brest on 9 July. Masséna and the rest of the Northern Squadron were tasked with attacking Cherbourg two days later. The maneuvers concluded with a naval review in Cherbourg on 19 July for President Émile Loubet.
