There's concerns over the safety of Boeing's 787-Dreamliner aircrafts.
A long-time company engineer claims sections of plane fuselage are improperly fastened - and could weaken over time.
The US Federal Aviation Administration is investigating.
Aviation commentator, Geoffrey Thomas, says neither Airbus or Boeing make the engines, wheels, seats or undercarriages.
"All of these items come in from a massive supply chain. So if there's a problem with an Airbus aeroplane, there's a problem with a Boeing plane."
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