Boeing still has to make “significant changes” to improve the quality and safety of its airplanes, according to the head of the Federal Aviation Administration.

Boeing manufacturing workers were pressured to prioritize speed in their work over ensuring proper quality, according to a new Federal Aviation Administration report released Wednesday. The report comes as the company has been consistently under public pressure concerning its aircraft safety.

Boeing factory workers reported being pressured to prioritize speed of production over the quality of their work, according to findings from a Federal Aviation Administration (FAA) probe into the

Boeing factory workers felt pressured to prioritize production speed over quality and said they did not receive enough training to properly perform their jobs, according to the results of a special investigation by the Federal Aviation Administration (FAA) published Wednesday.

An internal Boeing survey found many factory workers still felt pressure to prioritize speed over quality months after a midair blowout on one of the company’s jets sparked a crisis of confidence in the planemaker.