The two destroyer minesweepers were supposed to sweep the entrance to Seeadler Harbour between Hauwei and Ndrilo Islands but fire from at least one Japanese 4-inch (102 mm) gun on Hauwei Island prevented them from entering the harbour.
Det var meningen at de to destroyerminestrygere skulle stryge miner i indsejlingen til Seeadler Harbour mellem øerne Hauwei og Ndrilo men beskydning fra mindst en japansk 10cm kanon på Hauwei forhindrede dem i at sejle ind i havnen.