On 8 March, she reported an HF/DF intercept which indicated an enemy submarine on the route of the convoy. The route was consequently altered. On 9 March, while south of Iceland, she reported a radar contact at 19:50 at , which placed it  south of the convoy at .
On March 8th, she detected an HF/DF signal pointing to an enemy submarine on the convoy's route. The path was altered. On March 9th, while south of Iceland, she reported a radar sighting at 19:50, which indicated it was south of the convoy.