From left, U.S. Marine Corps Cpl. Spencer Collart, 21, of Arlington, Va.; U.S. Marine Corps Capt. Eleanor LeBeau, 29, of Belleville, Ill.; and U.S. Marine Corps Maj. Tobin Lewis, 37, of Jefferson, Colo. (U.S. Marine Corps)

The Marine Corps has identified a squadron executive officer, pilot and crew chief killed Sunday morning when their MV-22B Osprey went down in northern Australia.

The three who died in the 9:30 a.m. crash on Melville Island, north of Darwin in the Northern Territory, were members of Marine Medium Tiltrotor Squadron 363 from Kaneohe Bay, Hawaii:

Cpl. Spencer R. Collart, 21, of Arlington, Va., a crew chief.

Capt. Eleanor V. LeBeau, 29, of Belleville, Ill., an Osprey pilot.

Maj. Tobin J. Lewis, 37, of Jefferson, Colo., the squadron’s executive officer.

The squadron is deployed with Marine Rotational Force – Darwin, according to a Tuesday statement by the rotational force.

U.S. Marine Corps Cpl. Spencer Collart, 21, of Arlington, Va. (U.S. Marine Corps)

U.S. Marine Corps Capt. Eleanor LeBeau, 29, of Belleville, Ill. (U.S. Marine Corps)

U.S. Marine Corps Maj. Tobin Lewis, 37, of Jefferson, Colo. (U.S. Marine Corps)

The crash is the third fatal incident involving Marine Ospreys since March 2022, when four Marines died in Norway due to pilot error, according to a Marine accident investigation.

In June 2022, five Marines died when their Osprey went down in Southern California. The Corps blamed that incident on a faulty clutch, a problem the Marines, Navy and Air Force linked to the Osprey.

The Pentagon’s chief spokesman said Monday he was unaware of any immediate action across the U.S. military related to the incident in Australia.

“We need to allow time for the investigation to take its course,” Brig. Gen. Pat Ryder said at a Pentagon news briefing. “I’m not aware of any service activity as it relates to any kind of messages in terms of potential stand-downs or anything like that. Again, we need to look at the data here and look at each situation and judge it on its own merits.”

The Marines who perished in Australia together represent more than 20 years of service in the Corps.

Collart enlisted in October 2020, and was promoted to corporal in February. He served in Pensacola, Fla., and Jacksonville, N.C., before arriving at Kaneohe Bay. His awards include the National Defense Service Medal, Global War on Terrorism Service Medal, and Sea Service Deployment Ribbon.

LeBeau was commissioned in August 2018, and promoted to captain in March. She served in Pensacola, Fla.; Corpus Christi, Texas; and Jacksonville, N.C., before arriving at Kaneohe Bay. Her awards include the National Defense Service Medal, Global War on Terrorism Service Medal, and Sea Service Deployment Ribbon.

Lewis was commissioned in August 2008 and promoted to major in October 2018. He has served in Pensacola, Fla.; Corpus Christi, Texas; Jacksonville, N.C.; and Okinawa, Japan, before arriving at Kaneohe Bay.

His awards include two Navy and Marine Corps Commendation Medals, the Navy and Marine Corps Achievement Medal, Navy Unit Commendation, National Defense Service Medal, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, and four Sea Service Deployment Ribbons.

Three Marines remain at Royal Darwin Hospital, with one in critical condition and two in stable condition. Seventeen others were taken to the same hospital, treated for minor injuries, and released, according to the Marines’ statement.

“We are deeply saddened by the loss of three respected and beloved members of the MRF-D family,” Col. Brendan Sullivan, commander of the rotational force, said in the statement. “Our thoughts and prayers remain with the families and with all involved.”

The rotational force is focused on supporting recovery and investigative efforts, Sullivan added.

“We would like to express our sincere gratitude to the Australian Defence Force, Northern Territory Police, Northern Territory Government, CareFlight Air and Mobile Services, NT Health, National Critical Care and Trauma Response Center, and Tiwi Island Government, who have come together to assist us in this difficult time,” he said.

The Marines have been rotating a force to Darwin each northern hemisphere winter since 2012. This year, the Marine Air-Ground Task Force in Australia includes 2,000 Marines and sailors who arrived Down Under in April and will remain until October.