内容摘要：Swiss aviation pioneer Bertrand Piccard, center, Raphael Dinelli, left, Climate Impulse engineer and co-pilot, and project manager Cyril Haenel speak in front of the wings of the Climate Impulse, a plane powered by liquid hydrogen, at the press presentation of the project in a hangar in Les Sables d’Olonne, France on Thursday, Feb. 13, 2025.(AP Photo/Yohan Bonnet)

Swiss aviation pioneer Bertrand Piccard, center, Raphael Dinelli, left, Climate Impulse engineer and co-pilot, and project manager Cyril Haenel speak in front of the wings of the Climate Impulse, a plane powered by liquid hydrogen, at the press presentation of the project in a hangar in Les Sables d’Olonne, France on Thursday, Feb. 13, 2025.(AP Photo/Yohan Bonnet)

The oxygen problem was likely caused by a loss of cabin pressure, according to the report. Investigators could not determine the exact reason for the pressure loss, but they noted that the Cessna Citation had a number of maintenance issues. They included no pilot-side oxygen mask and supplemental oxygen at its minimum serviceable level.“At that level, oxygen would not have been available to the airplane occupants and passenger oxygen masks would not have deployed in the event of a loss of pressurization,” according to the report. It concluded that, “Contributing to the accident was the pilot’s and owner/operator’s decision to operate the airplane without supplemental oxygen.”

in the June 4, 2023 accident. They were pilot Jeff Hefner, 69; New York real estate broker Adina Azarian, 49; Azarian’s 2-year-old daughter Aria; and Evadnie Smith, 56, who worked as live-in nanny for Aria. Prior to the crash, Azarian, Aria and Smith were in North Carolina to visit Azarian’s adoptive parents.instructions within minutes of taking off from Elizabethton, Tennessee, at 1:13 p.m. The plane flew to New York, near its destination at Long Island’s MacArthur Airport, then turned around and flew a straight path over D.C. Fighter jets sent after it caused athat was heard across the capital region as they raced to catch up. The plane then

in into a mountain near Montebello, Virginia, and burst into flames at 3:23 p.m.Fighter pilots tasked with intercepting the wayward flight said Hefner “was laying and slumped completely over into the right seat and remained motionless throughout their observations,” according to NTSB records. They did not observe any movement within the cabin area nor any shapes that resembled a person.

Once Hefner lost consciousness, the plane likely was directed along its path by autopilot “until a point at which it was no longer able to maintain control,” according to the report.

Lack of oxygen, called hypoxia, can affect people differently, but it is known to cause confusion, disorientation and diminished judgment and reactions, according to the report. A pilot would likely have between 30 seconds and 2 minutes to take corrective action. That time could be less if the depressurization is rapid.Laban Keben saw, jumped in and grabbed her but the ferocious animal held on. Laban tried again. And again. After his third attempt, his wife and the mother of their children lost consciousness, he said.

“I saw her dying, leaving me behind,” he said.He thought of their daughter, barely six months old, and their two other children.

Not knowing what else to do, he started screaming for help. Another man ran over with a machete and struck at the crocodile, Laban said, and suddenly, it swam away, leaving Winnie’s limp body behind.Laban Keben shows where his wife, Winnie, was attacked by a crocodile at Lake Baringo in Kampi ya Samaki, Kenya, Thursday, July 21, 2022. (AP Photo/Brian Inganga)