American manufacturer Boeing's share price began to fall on the New York Stock Exchange on Monday after a door on one of its planes being torn off mid-flight led to the shutdown of numerous planes.
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In electronic trading before Wall Street opened, giving an indication of the trend expected for the session, Boeing shares fell 8.3% to $228.34 at 5:25 a.m. GMT. It closed Friday up 1.66% at $249.
On Friday evening, a door on a Boeing 737-9 came off during an Alaska Airlines flight. The aircraft, which had just taken off from Portland (Oregon) with 171 passengers and 6 crew members on board, was at an altitude of almost 5,000 m at the time.
In response, the American Civil Aviation Authority (FAA) on Saturday called for the shutdown of around 171 aircraft of this model for inspection, particularly affecting companies such as United Airlines, Turkish Airlines and Aeromexico.
The NTSB investigation has just begun and no conclusions have been reached yet.
This incident adds to a long list of setbacks for the Arlington, Virginia-based group, particularly regarding this model of device.
The most serious were the crashes of two Boeing 737 MAX in October 2018 in Indonesia and in March 2019 in Ethiopia, which killed a total of 346 people.
After these accidents, which were linked to the MCAS pilot software, all 737 MAXs were grounded for 20 months.