New images of a US Navy seaplane that sank during the Japanese attack on Pearl Harbour show a coral-encrusted engine and reef fish swimming in and out of a hull.
Office of National Marine Sanctuaries maritime archaeologist Hans Van Tilburg says the video and photos are the clearest images yet of the Catalina PBY-5.
The site is not publicly accessible, so the images allow scientists to share the wreckage with others. They also help with documenting a historically significant wreck over time.
The plane sits in 30 feet of water in Kaneohe Bay.
Mr Van Tilburg said there were signs someone started the port engine before the plane sank, indicating the crew might have died while attempting to take off during the attack on December 7 1941.
The plane could hold an eight-man crew and was also called a "flying boat".