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Boeing, an icon in American manufacturing, suffered its first annual financial loss in more than two decades as the costs related to its marquee 737 Max aircraft doubled to more than $18 billion after a pair of deadly crashes.

New CEO David Calhoun on Wednesday stood by his estimate that regulators will certify changes Boeing is making to the 737 Max by midyear. And he criticized the company’s prior leadership for not immediately disclosing a trove of damning internal communications.

He promised to be more transparent. “I have to restore trust, confidence and faith in the Boeing Co.,” he told Wall Street analysts.

Chicago-based Boeing reported a loss of $1 billion in the fourth quarter as revenue plunged 37% due to the grounding of the Max. The company suspended deliveries of the plane last spring and never expected the stoppage to last this long.

The company lost $636 million for all 2019, compared with a profit of nearly $10.5 billion in 2018. It was the first annual loss since 1997, when Boeing was roiled by parts shortages, production delays, and expenses from merging with McDonnell Douglas.

Boeing added another $9.2 billion to charges for concessions to airlines that have canceled thousands of Max flights and higher costs related to compensation, doubling its estimate of the total financial hit from the crisis to $18.6 billion.

Revenue tumbled to $17.91 billion, far below Wall Street’s forecast of $21.70 billion, according to a FactSet survey of analysts.

Boeing’s problems aren’t limited to the Max.

Slowing demand for larger planes led the company to announce it will reduce production of the 787 Dreamliner from 14 a month to 12 later this year, then 10 early next year. The plane has become more important to Boeing’s health during the Max grounding.

In addition, Boeing’s 777X jet is behind schedule, and a decision on whether to build a new mid-size plane to compete with one from Airbus has been delayed.

Revenue in the company’s defense and space business fell 13% and it took a $410 million charge in case NASA requires another unmanned flight of the Starliner — the spacecraft that failed to reach the International Space Station during a test flight in December.

Boeing’s focus, however, is on fixing the Max. Without any Max deliveries since April, the company is burning through cash, and Boeing confirmed that it is lining up bank commitments for $12 billion in new borrowing.

The Max was grounded last March, after two crashes within five months killed 346 people in Indonesia and Ethiopia. The crisis torpedoed sales and deliveries of new jetliners, leaving Boeing far behind rival Airbus. It caused a shutdown in Max production, layoffs at suppliers, and led to the firing of CEO Dennis Muilenburg.

U.S. airlines that own Maxes — Southwest, American and United — don’t expect it back until after the peak of the summer travel season. It is anyone’s guess about how willing passengers will be to fly on the plane.

The head of the Federal Aviation Administration, Stephen Dickson, told U.S. airline officials late last week that he was content with Boeing’s progress toward getting the Max back in the year, raising the possibility that the plane could fly sooner than Boeing has estimated.

Calhoun said Wednesday he appreciated Dickson’s comments, but they wouldn’t cause him to change Boeing’s projection of regulatory approval by midyear because “if he changes those comments in a month, we change our schedule.”

Calhoun insisted the Max “is a sound airplane” that will be safer than ever after extensive tests and scrutiny by the FAA. He said passengers will fly on it once they see pilots get on board.

“Airplanes unfortunately have gone down before,” he told reporters. “People take a breath and wonder whether they’ll ever fly one again … and then slowly and steadily, they do.”

Boeing won’t change the name of the plane either, as President Donald Trump and others have suggested. “I’m not going to market my way out of this,” Calhoun told CNBC.

Boeing has been embarrassed in recent weeks by the disclosure of years-old internal messages in which test pilots and other key employees raised safety concerns about the Max — even saying they wouldn’t put their families on it — while the plane was in development and testing.

Calhoun called the messages “horrible” and criticized company leaders who didn’t disclose the messages right away. He said board members were kept in the dark.

“Every one of us involved in every step of that process believes we found out too late,” he said. “Were we as transparent as we needed to be when we did find out? No.”

Calhoun, a former General Electric and Nielsen executive who had been on Boeing’s board since 2009, became CEO this month.

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