1 min readBy SF Staff
Why United Has Hundreds of Lie-Flat Seats It Can’t Use
In this video, we'll look at how Boeing's certification delays created one of the aviation industry's strangest supply-chain problems, why these seats can't simply be moved to another aircraft, what United did instead, and whether the Boeing 737 MAX 10 still has the role it was originally designed to fill.
By SF StaffZimbabwe

In this video, we'll look at how Boeing's certification delays created one of the aviation industry's strangest supply-chain problems, why these seats can't simply be moved to another aircraft, what United did instead, and whether the Boeing 737 MAX 10 still has the role it was originally designed to fill.
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About this article
- Length
- 50 words · 1 min read
- Published
- October 15, 2026
- Byline
- SF Staff
- Source
- Simple Flying