On 11 April "Penelope" ran aground off Fleinvær while hunting German merchant ships entering the Vestfjord. Her boiler room was flooded and she was holed forward. The destroyer towed her to Skjelfjord where an advanced base had been improvised. Despite air attacks, temporary repairs were made and she was towed home a month later. She arrived at Greenock in Scotland on 16 May 1940 where additional temporary repairs were carried out, before proceeding on 19 August to the Tyne for permanent repairs.