China News Service, March 8 (China News Business Reporter Ge Cheng) According to foreign media reports, on the 7th local time, a tire of a United Airlines Boeing 777-200 aircraft fell off shortly after taking off from San Francisco International Airport. Diversion and forced landing.

　　Videos on social media showed that during takeoff of the aircraft involved, a tire fell from the rear landing gear before the landing gear was retracted.

Outside the airport, several cars parked in the parking lot had their roofs smashed.

　　Industry insiders told reporters that the above-mentioned accident was probably caused by improper maintenance.

The aircraft landing device is composed of multiple tires. In theory, a problem with one tire will not affect the normal takeoff and landing of the aircraft.

Similar accidents have occurred on other aircraft models before.

  Video screenshot.

A runway at the airport involved was temporarily closed

　　Foreign media reported that the plane was originally scheduled to fly to Osaka, Japan, with a total of 249 people on board.

No injuries have been reported at this time.

The airline said it was arranging a new aircraft for affected passengers.

　　The incident also briefly closed a runway at San Francisco International Airport.

Falling tire fragments damaged several cars in the airport employee parking lot.

　　According to the above-mentioned industry insiders, in densely populated airports and other areas, if parts fall off the aircraft, the consequences will be serious, because aircraft tires usually weigh about 100 kilograms and require at least two people to hold them.

Doors have fallen off other Boeing models before

　　Since 2024, Boeing aircraft have repeatedly suffered safety accidents.

In January, a Boeing 737 MAX 9 operated by Alaska Airlines made an emergency return to Portland International Airport after its built-in emergency door fell off.

In February of the same year, a United Airlines Boeing 757 flying from San Francisco to Boston made an emergency landing when one of its wings was "broken" during the flight.

　　On March 4, local time, the U.S. Federal Aviation Administration (FAA) website announced the latest investigation progress of the Boeing "falling door" accident.

The investigation report stated that Boeing and its airframe parts supplier Spirit AeroSystems had "non-compliance" in parts handling, storage, and quality control during the manufacturing process of the 737 MAX passenger aircraft.

　　In order to hold Boeing responsible for the quality of its products, the U.S. Federal Aviation Administration stated in the above report that it has ordered Boeing to stop the production expansion of the 737 MAX aircraft and use a third party to conduct an independent review of its quality system, emphasizing that it will thoroughly Review all Boeing corrective actions.

Boeing pointed out safety culture still has shortcomings

　　On February 28, the Federal Aviation Administration asked Boeing to develop a comprehensive action plan within 90 days to resolve its "systemic quality control issues."

In response to this request, Boeing responded on its official website that it will develop a comprehensive action plan with measurable standards to address the above challenges.

　　Previously, the U.S. Federal Aviation Administration mentioned in a report released on February 26 that Boeing’s efforts to improve safety culture after the two 737MAX crashes (2018 and 2019) did not achieve the expected goals. Safety culture remains deficient.

　　According to US media reports, on February 21, local time, executives of Boeing's commercial aircraft department informed employees that the person in charge of the 737 MAX project would leave immediately, and the company's commercial aircraft department leadership would also be reorganized.

In addition, Boeing also announced personnel changes in multiple executive positions.

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