Six Decades Later, a Second Rescue Attempt The aircraft carrier U.S.S. Boxer in June 1952 off the Korean coast. BEIJING - As more than 100,000 Chinese soldiers swarmed far fewer American Marines and soldiers in subzero temperatures on treacherous terrain in one of the fiercest battles of the Korean War, two United States Navy pilots took off from an aircraft carrier to provide cover for their comrades on the ground. One of the airmen, Ensign Jesse L. Brown, was the son of an African-American sharecropper from Mississippi. The other, Lt. Thomas J. Hudner Jr., was the son of a white patrician merchant family from Massachusetts. An hour into the flight, Ensign Brown's plane was hit by enemy fire, forcing him to crash land on the side of a mountain at Chosin, north of Pyongyang. Lieutenant Hudner brought his plane down nearby and found Ensign Brown, but could not rescue him. On Monday, nearly 63 years after the Battle of Chosin Reservoir, Mr. Hudner, 88, arrived in Beijing after a 10-day visit to North Korea aimed at finding his friend's remains. The trip to North Korea coincided with the 60th anniversary of the end of the Korean War, a milestone that the North Korean government has tried to use for propaganda purposes. Mr. Hudner's trip was arranged by Chayon Kim, a Korean American who organized the visit in April of Dennis Rodman, the former N.B.A. star who became the first American to meet with the North's young leader, Kim Jong-un, since he took over from his father in 2011. The timing of Mr. Hudner's visit coincided with a massive military parade on Saturday. Not wanting to be a North Korean prop and citing his frail legs, Mr. Hudner said he avoided the parade and stayed away from the opening of a military museum featuring the U.S.S. Pueblo, an American Navy ship captured by North Korea in 1968. Nonetheless, he said he made the trip to help bring closure not only to himself but to Mr. Brown's widow, Daisy Brown Thorne, 88. In the end, though, his mission failed. It is the rainy season in the North, and the North Koreans told him that almost daily downpours had washed away roads and bridges and made access to the crash site, a five-hour drive from Pyongyang, impossible. "It was sort of a jolt to see how they were claiming this was a victory," Mr. Hudner said, as he and his traveling companion, Dick Bonelli, 82, a Marine veteran from the battle of Chosin, relaxed at a hotel here before returning to the United States on Tuesday. We decided not to go to the parade and to skip the museum and the U.S.S. Pueblo. It still belongs to the United States. Mr. Hudner's attempt to save Mr. Brown has resonated through American military annals not only for its daring, but because of what it said about race relations in the newly desegregated military. The two men met two years after the official desegregation order. "Shortly after I joined the squadron, I was changing into flight gear and he came in and nodded "Hello," " Mr. Hudner said of meeting Ensign Brown in December 1949. I introduced myself, but he made no gesture to shake hands. I think he did not want to embarrass me and have me not shake his hand. I think I forced my hand into his. Mr. Brown, the United States Navy's first black aviator, had endured scorn and prejudice during training from 1947 to 1948, said Adam Makos, who is writing a book on the wartime friendship between the two pilots, and who also visited Pyongyang with Mr. Hudner. On the day of the fateful flight, Mr. Hudner said he took off with Mr. Brown on his wing on Dec. 4, 1950. They were in a formation of six Corsairs, single-propeller planes from World War II that are big enough only for a pilot and are mounted with .50-caliber machine guns. The pilots had been flying almost daily sorties, giving protection to American soldiers engaged in hand-to-hand combat with Chinese soldiers sent by Mao Zedong to fortify the weak North Korean army. The Americans, surprised by the wave upon wave of Chinese soldiers, and hindered by machine guns that did not work in the freezing weather, had been ordered to withdraw. They were within days of completing that operation when Mr. Hudner and Mr. Brown flew with instructions to patrol roads for enemy troops. An earlier version of this article contained several errors. It misspelled the given name of North Korea's current leader. He is Kim Jong-un, not Jung-un. It also misstated the extent of the desegregation order that was issued two years before Ensign Brown and Lieutenant Hudner met in the Navy. The order applied to the entire military, not just the army. And because of an editing error, it misspelled the given name of Mr. Brown's widow. She is Daisy (not Daily) Brown Thorne.