BOEING's updated 777 jet is facing additional testing due to a test-flight incident, other software issues, and inadequate date, reports the American Journal of Transportation.
Boeing fell 1.4 per cent to US$245.01 before the start of regular trading in New York while the shares had climbed 16 per cent this year through June 25 and the Dow Jones Industrial Average rose 13 per cent.
The Federal Aviation Administration (F) wrote to Boeing demanding that the company address multiple shortfalls.
'The F anticipates a significant impact to the level of regression testing, change impact analysis, and the potential to increase the number of certification flight tests that will need to take place,?? said the letter.
The F expects certification to be delayed until mid to late 2023, and the work would take additional resources that could hamper other projects with the company.
Said Boeing: 'Boeing remains fully focused on safety as our highest priority throughout 777X development. We are working through a rigorous development process to ensure we meet all applicable requirements.'
The F highlighted several concerns including a flight-control incident during a test flight on December 8, 2020, when the plane experienced an uncommanded pitch event, meaning the nose of the aircraft rose or fell due to the control system.
The agency also told Boeing that a critical avionics system proposed for the airplane doesn??t meet requirements.
Said Boeing CEO Dave Calhoun: 'That airplane, we are still confident will be certified in the fourth quarter of 2023. So those are the important things with respect to how we do this. We've given ourselves time to learn as go through this.'
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Boeing fell 1.4 per cent to US$245.01 before the start of regular trading in New York while the shares had climbed 16 per cent this year through June 25 and the Dow Jones Industrial Average rose 13 per cent.
The Federal Aviation Administration (F) wrote to Boeing demanding that the company address multiple shortfalls.
'The F anticipates a significant impact to the level of regression testing, change impact analysis, and the potential to increase the number of certification flight tests that will need to take place,?? said the letter.
The F expects certification to be delayed until mid to late 2023, and the work would take additional resources that could hamper other projects with the company.
Said Boeing: 'Boeing remains fully focused on safety as our highest priority throughout 777X development. We are working through a rigorous development process to ensure we meet all applicable requirements.'
The F highlighted several concerns including a flight-control incident during a test flight on December 8, 2020, when the plane experienced an uncommanded pitch event, meaning the nose of the aircraft rose or fell due to the control system.
The agency also told Boeing that a critical avionics system proposed for the airplane doesn??t meet requirements.
Said Boeing CEO Dave Calhoun: 'That airplane, we are still confident will be certified in the fourth quarter of 2023. So those are the important things with respect to how we do this. We've given ourselves time to learn as go through this.'
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