PYEONGTAEK, South Korea — The U.S. Navy has recovered most of the wreckage of an F-16 fighter that crashed in March off South Korea’s west coast, including the flight data recorder investigators hope will give telltale insights into the incident, officials said Friday.

The F-16C, from the 8th Fighter Wing at Kunsan Air Base, went down March 14 about 25 miles from the base during what the Air Force said was a routine training mission. The pilot, Capt. Donald Siegmund of the wing’s 35th Fighter Squadron ejected safely and was picked up at sea by a South Korean rescue helicopter.

Navy divers recovered 85 percent of the aircraft, including wing segments, the cockpit area and several other types of data-recording equipment, officials said.

Bad weather halted a first search attempt in March. The second began May 7 and wrapped up Wednesday, said Lt. j.g. Jessica Gandy, a Navy spokeswoman in Seoul.

With much of the salvaged wreckage “a tangled mess,” Air Force investigators are focusing first on the “black box” data recorder.

“The black box records a large amount of data ... to tell us what may have been the real reason for the accident,” said Col. William A. Morgan, president of the safety investigation board convened to look into the crash. “Our purpose is not to lay blame, our purpose is to do everything we can to prevent a future, similar-type occurrence.”

Board members hope to have evaluated the data within the next two to three days and to determine the condition of the aircraft at the time it crashed, Morgan said Friday.

Board members also will examine the other salvaged items. A report will be given to Pacific Air Forces commander Gen. Paul V. Hester.

Bad weather scuttled the initial recovery effort after six days. But the USS Safeguard, a 250-foot rescue-and-salvage ship, returned to the scene May 5 with Navy divers of Mobile Diving Salvage Unit 1. Debris was recovered during 12 dives over several days, Navy offiicials said.

The Safeguard is based at Sasebo Naval Base, Japan. MDSU 1 is out of Pearl Harbor, Hawaii.

The minesweeper USS Guardian first located the wreckage March 24 using its sonar.

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