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U.S. authorities are looking to fine Boeing $5. 4m (£4. 14m) for "knowingly" installation, faulty parts in 737 Max aircraft.

The Move comes after the release of internal communication, which is raised even more questions about the jet-safety.

In a communication, a staff member said the plane was "designed by clowns".

Boeing has been under scrutiny since the fatal crashes of two 737 Max aircraft, which killed 346 people.

the order of The Federal Aviation Administration (FAA) was on Friday with the software system That the investigators in these crashes.

It slat tracks "" on the wings.

The FAA said The Company filed the nozzles for the FAA, despite the determination That The Wing -parts That had failed a strength test. It is also accused of the Boeing is the monitoring of your suppliers correctly.

The plan maker has The Right to appeal against the punishment, which follows a $3. 9m penalties proposed by the FAA against the US aerospace giant for similar reasons as in the last month.

Boeing did not immediately respond to a request for comment.

The Announcement increases the pressure on The Company , the crash in front of several investigations after the 737 Max in Indonesia and Ethiopia.

Last month, The Company said on Friday it had sent him to pay the severance pay and denied That he had forfeited stock awards to the value of about $14. 6m.

As part of the research, the Boeing available to the hundreds of messages to the FAA and Congress. He said it had released redacted versions of the This Week as part of their commitment to transparency.

"This communication may not necessarily be The Company That said, we need to, and they are completely unacceptable," Boeing.

In an exchange in April 2017, an unnamed employee wrote: "This aircraft was of clowns, which is regulated in turn by the monkeys. "

The Boeing unveiled plans, in order to obtain push-back against the demands of the 737 Max pilots training on simulators, which would have led to higher costs for customers, the your aircraft will be less attractive.

"I want to emphasize the importance of holding That it is not just any kind of simulator training required to transition from NG to Max," Boeing 737 chief technical pilot at the time, Mark Forkner, said in a March 2017, E-Mail.

"Boeing will not allow this to happen. We go from face-to-face with each of the controllers, to make the attempt, That is a requirement. "

On Tuesday of This Week , Boeing reversed its position, by for all pilots.

These messages are related to the Boeing-employees are lying, the cover-up of problems and the treatment of regulatory authorities with contempt.

to strengthen the Impression already expressed, vividly, through informants and in congressional hearings That Boeing was a company That had lost its way, focused on maximizing production and keeping costs low rather than on safety.

all of this actually hurt Boeing but? It is, however, questionable.

the reputation of The Company was already've savaged; it is a calculation, it now has little to lose by you are transparent about the mistakes of the past.

But it is easy to see why The Relationship between Boeing and the Federal Aviation Administration has, so Far , and why the re-certification for the Boeing 737 Max has taken so long.

the employees are displayed, the problems to discuss with the simulators.

In February 2018, with a Boeing-worker asked a colleague: "you Would be trained on the aircraft with your family on a Max? I would not. "

"no," came the reply.

Boeing said the redesign of the automated scheme is thought to be the primary cause for the crashes.

But the 737 Max aircraft have been grounded worldwide since March and no sign of the regulatory authorities That the aircraft approved for flight soon,

On Friday, to start the economic costs felt as Spirit Aerosystems , a major Boeing supplier, said it would cut 2,800 jobs in a factory in Kansas, and is expected to be smaller redundancies in some of his other works.

"the spirit takes this action because of the 737 MAX suspension of production and the continuing high level of uncertainty regarding the point in time when the production continued, and The Level of production, if not more," The Company said in a statement, which noted That Boeing needs hundreds of 737 aircraft in storage.