 A US Navy plane saw the sub and dropped depth charges, the sub was forced to dive and end the attack.On February 23, 1942, "I-19"s Yokosuka E14Y (Glen) floatplane made a night reconnaissance over Pearl Harbor, Hawaii in preparation for Operation "K-1", the second attack on Pearl Harbor by the Imperial Japanese Navy.On March 4, she arrived at the French Frigate Shoals to serve as a radio beacon for the Kawanishi H8K (Emily) flying boats that were to attack Pearl Harbor but did not otherwise participate in the attack, which was carried out effectually by two of the planned five H8Ks.