During World War II, nearly 10,000 B-25 bombers were deployed to conduct a variety of missions - such as bombing, submarine patrols, and the historic raid over Tokyo in April 1942.
Present-day Papua New Guinea was the site of military action in the Pacific from January of 1942 to the end of the war in August 1945, with significant losses of aircraft and servicemen, some of whom have never been found.
In February, the team set out on a mission to map the seafloor in search of missing WWII aircraft, conduct an official archaeological survey of a known B-25 underwater wreck, and interview elders in villages in the immediate area.
In its search of nearly 10 square kilometers, the team located the debris field of a B-25 bomber that had been missing for over 70 years, associated with a crew of six.
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"After soaking in the sea for decades, they are often unrecognisable to the untrained eye, often covered in corals and other sea-life," said O'Connell, who is based at the University of Delaware.
"Our use of advanced technologies, which led to the discovery of the B-25, enables us to accelerate and enhance the discovery and eventual recovery of our missing servicemen," she said.
While the scientific focus of Project Recover is to conduct underwater searches and surveys, equally important are the historical accounts of crashes that are often part of local histories, passed from one generation to another.
While speaking to village elders about the two B-25 cases, team members were told about local terrestrial burial sites and an additional aircraft that had crashed on land.