On 27 October 1778, under M. de la Jaille, Expédition captured a 16-gun British privateer.In 1779, Expédition sailed with the frigate Surveillante. She took an incidental part in the action of 6 October 1779, and after the battle, she took Surveillante in tow.
In January 1782, under M. de Langle, Expédition departed Port Louis for a patrol. Off Isle de France, she encountered a strange sail, that she chased under a British false flag. Her quary was in fact the French transport Bethsy, under Captain Roche. Bethsy attempted to flee and seeing her pursuer gaining on him, Roche destroyed letters from Suffren before realising the mistake.[1]
In April 1782, Expédition was to carry despatches from Navy Minister Castrie and from Bussy-Castelnau to the squadron under Suffren near Nagapattinam. She arrived on the Indian coast and called Tharangambadi, but instead of continuing directly, she started preying on Paraiyar merchantmen. This put her in the course of the British squadron under Hughes, which detected and chased her. Expédition deliberately ran aground between Tharangambadi and Karaikal. Her crew managed to escape, but the despatches were lost.