Engineer Sam Salehpour said the company knowingly allowed errors in the production of the Dreamliner. Boeing is also said to have used an abbreviated process to reduce bottlenecks in 787 assembly.

According to the whistleblower, “Boeing engineers were pressured to close their eyes. ” The company has always rejected the allegations and carried out basic maintenance on its 787 jets in use and discovered no damage, the FAA said. The FAA also said in a statement that every aircraft used met the agency's standards. The whistleblower was sanctioned by being transferred against his will from the department responsible for that model to the 777 program, according to a letter from his lawyers to the FAA in January. He pointed out "significant" safety deficiencies in almost 1,500 aircraft, the letter said. "Kicking me out of the program because I raise safety concerns helps no one," a senator quoted him as saying in a 2021 memo.