US carrier United Airlines has blamed a $200m (£161m) hit to its earnings in the first three months of the year on the blowout, after it was forced to ground many planes as a result.
Boeing said this week that claims about the 787’s structural integrity are inaccurate and that work done to ensure quality and long-term safety give it full confidence in the plane.
An official has said the model has been stress-tested for 165,000 flight cycles, beyond its expected lifespan, and that no aircraft have shown evidence of fatigue.
Mr Salehpour set out his concerns about the 787 and the even larger 777 plane in a complaint to the Federal Aviation Administration earlier this year, which the regulator has said it is investigating.
The letter said that parts of the 787 were improperly fastened together following changes to the production process and were in danger of coming apart after thousands of flights.
Mr Salehpour said Boeing brushed off his concerns. His claims will be scrutinised by a Senate panel later Wednesday.
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