“During the course of two days, eight US Navy and Japan Maritime Defense Force ships, three helicopter squadrons and maritime patrol aircraft covered nearly 1,000-square nautical miles,” the US Seventh Fleet said in a press release.
Eight other people on a C-2 Greyhound were rescued shortly after the aircraft crashed and transferred to the Reagan.
The latest Navy accident in the Asia Pacific comes after two deadly incidents in the region involving US warships that have raised questions about training and the pace of Navy operations in the region, prompting a Congressional hearing and the removal of a number of some senior officers.
The propeller powered C-2 on Wednesday was conducting a routine flight carrying passengers and cargo from Marine Corps Air Station Iwakuni in Japan to the carrier.
The mainstay transport aircraft for the US carrier fleet has been in operation for more than five decades and is due to be replaced by a long-range version of the tilt-rotor Osprey aircraft.
The US Navy said it is investigating the cause of the crash. Japanese Minister of Defense Itsunori Onodera told reporters on Wednesday that the US Navy informed him that the crash might have been a result of engine trouble.