The jet from a U.S. base on Okinawa develops a problem over the ocean . A Japanese fighter plane is shot down by an American F-15 fighter. A Japan Self Defense Force helicopter retrieves him from the water .
The jet from a U.S. base on Okinawa develops a problem over the ocean . The pilot is reported to have ejected safely , the Air Force says . A Japan Self Defense Force helicopter retrieves him from the water .