US Navy Carries Out C-2A Greyhound Wreck Survey

A US Navy-led mission aboard research vessel RV Petrel has mapped the wreckage of a C-2A Greyhound aircraft that crashed into the Philippine Sea en route to USS Ronald Reagan on November 22, 2017.

Using the vessel’s side scan sonar and an ROV to survey the aircraft from February 2-5, the team determined the aircraft lies on the ocean floor in two main sections – cockpit and fuselage – and that the C-2A’s flight recorder or black box is still intact.

Planning continues for an upcoming salvage mission, during which every effort will be made to bring both sections to the surface. At a depth of 18,500 feet (more than three nautical miles) this will be the deepest aircraft recovery to date and the team with have to contend with several variables including deep water rigging and weather that may affect retrieval.

The aircraft was initially discovered late last year by a U.S. Navy Supervisor of Salvage and Diving (SUPSALV) team using a towed pinger locator (TPL-25) system aboard a different contracted vessel. In January, the Navy contracted RV Petrel to support debris field mapping and inform aircraft recovery planning.

RV Petrel is a 250-foot research and exploration vessel with advanced underwater equipment and technology, making it capable of exploring to more than 3.5 miles. A team of SUPSALV personnel embarked Petrel late January and returned to the crash site.

Assigned to Fleet Logistics Support Squadron (VRC 30) forward deployed to Japan, the C-2A aircraft was carrying 11 crew and passengers when it crashed. Eight personnel were recovered immediately by U.S. Navy Helicopter Sea Combat Squadron (HSC 12). For the next three days, Ronald Reagan led combined search and rescue for three Sailors with the Japan Maritime Self Defense Force (JMSDF), covering nearly 1,000 square nautical miles before ending the search.

An investigation is in progress.

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