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A comment on Citing a serious flight test incident, FAA slows Boeing 777X certification. Parent comment

Re:Citing a serious flight test incident, FAA slows Boeing 7... by hasperdi on Sunday June 27, 2021 @05:02PM (#27655287)
In 737 case, it means redesign of the landing gear system, fuselage modifications, recertification, retraining, new support system requirements eg. Higher stairs, cargo support equipment etc.
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Re:Citing a serious flight test incident, FAA slows Boeing 7... by himinlomax on Monday June 28, 2021 @04:34AM (#27659378)
You also can't put longer main gear: as they fold inward, they have to attached at points separated by over twice the height. If you move them apart, you have to make the center fuselage as well as the root of the wings much stronger. That's a much bigger change than anything else.
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