Decades later, his story is a reminder of a solemn military promise: no one is left behind.
The remains of a U.S. fighter pilot from World War II, who vanished during a dangerous mission in Asia, have been found in a field in Thailand nearly 80 years after he disappeared. The discovery followed years of persistence by a small group of determined researchers.
First Lt. Franklin McKinney, who served with the famed all-volunteer American “Flying Tigers” unit, was last known to have departed from Beitan Airfield in Yunnan, China, on Nov. 5, 1944.
The military declared McKinney dead in March 1946, roughly two years after he failed to return from the perilous 1944 assignment. But neither his aircraft wreckage nor his remains were recovered by U.S. authorities at the time.
More than 60 years later, in 2010, a group of amateur investigators began taking a fresh look at the long-unsolved case.
The renewed search began with Daniel Jackson, then a cadet at the U.S. Air Force Academy, who came across McKinney’s story while researching a senior thesis on the pilot’s squadron, CNN reported.
Jackson later teamed up with Sakpinit Promthep, head of the Royal Thai Air Force Museum, and Richard Hakanson, an independent American researcher, to investigate what happened to McKinney. Jackson detailed their work in an article for Chiang Mai CityLife.
As the group dug into the records, Sakpinit uncovered a wartime document referring to a reconnaissance plane brought down by a “midair lightning strike,” along with a separate report mentioning the discovery of a skull, according to the outlet.
But the village mentioned in the document was so small, and it took Hakanson years of searching the country on foot to find the alleged crash site.
Miraculously, Hakanson found a 94-year-old witness, Fong Inma, in the small village of Mae Kua in 2017. She was able to testify that the plane crashed in what is now a rice field nearly 70 years ago.
Fong’s testimony was strong enough to convince Jackson that the rice paddy was the site of McKinney’s crash. And Jackson was in turn able to convince American authorities to investigate the site.
The Defense POW/MIA Accounting Agency – an agency a part of the Department of War dedicated to finding Americans missing in action and ensuring that there’s “no one left behind” – spent three years starting in 2023 combing the site for fragments to identify McKinney.
In March 2026, the search came to an end. Investigators were finally able to find McKinney’s remains in the rice field.
The long-lost airman was honored with a ceremony at the US Embassy in Thailand before being repatriated to the United States.
“After almost 82 years, Frank McKinney is home again. America has kept its promise,” now Lt. Col. Jackson wrote in his book about his 16-year search.
