Pilot who crashed into Beijing's tallest building wrote about 'ending his life'

The pilot who flew a small plane into Beijing's tallest building wrote in his diary about "ending his life", Chinese authorities say.

Their investigation concluded the cause of the June 26 crash was "personal reasons", according to a statement posted on social media by Beijing's Chaoyang district government.

The pilot, a 66-year-old Beijing man identified only by the surname Liu, died and 13 other people were injured.

None of the injuries are life-threatening and one of the injured has been discharged from the hospital, the government statement said.

The crash, which happened in a downtown skyscraper district as people were leaving work about 6pm, has raised questions about security in the Chinese capital.

It left a hole in the glass facade of the 108-storey CITIC Tower, nicknamed the "Zun" building because it mimics the shape of an ancient wine vessel of that name.

The pilot took off on a solo flight in the two-seat training plane from a general aviation airport in the outskirts of Beijing, the Chaoyang statement said.

Without identifying CITIC Tower, headquarters of one of China's largest state-owned conglomerates, the Chaoyang government said Mr Liu had deviated from his approved flight area and lost contact with the airport from which he took off before crashing into the building and dying at the scene.

Mr Liu had no fixed job, was divorced and lived alone, according to the statement.

He had insomnia and anxiety and his diary had multiple references to ending his life, it said.

Internet users still seeking answers

Central Beijing, where China's leaders live and work, has strict airspace controls including a ban on drones and there has been speculation in the city's central business district, where the building is located, about what happened.

Discussion of the crash on Chinese social media has since been scrubbed.

Internet users were still seeking answers in posts beneath the online statement before they were swiftly deleted.

The Chaoyang district government's statement said Mr Liu had obtained a sport pilot licence in 2021 and a private pilot licence in 2024.

Obtaining a private pilot licence in China requires a physical medical examination and other appropriate certifications, a pilot qualified to fly in China told news agency Reuters, requesting anonymity due to the sensitivity of the incident.

Official rules would require the 66-year-old to secure a medical certificate every two years to demonstrate medical fitness, including the absence of psychiatric conditions that could affect safe piloting.

It remains unclear how the plane was able to enter an area next to a permanent no-fly zone and also cross highly restricted airspace used by commercial jets arriving at and departing from Beijing Capital Airport, one of the city's two major airports.

Chinese regulations require all flights, including non-airline general aviation, to be approved in advance.

AP/Reuters