Boeing will face a series of restrictions and sanctions for sharing “non-public” information about the mid-air blowout earlier this year on one of its 737 Max jets, the National Transportation Safety Board announced Thursday.

The NTSB said Boeing will retain its party status in the investigation but will no longer have access to investigative information produced as part of the probe. The NTSB said it will subpoena the company to appear at two days of hearings on the accident scheduled for August.

Boeing did not immediately respond to a request for comment.

The information was shared during a media briefing at the Renton, Wash., campus where the company completes final assembly on its 737 Max aircraft. The company had invited members of the media for a series of briefings ahead of the Farmborough International Airshow next month.

Companies and organizations that are part of NTSB probes sign agreements not to publicly reveal information about the investigations. “As a party to many NTSB investigations over the past decades, few entities know the rules better than Boeing,” the NTSB said in a statement.

Elizabeth Lund, senior vice president overseeing quality control and quality assurance efforts at Boeing, briefed reporters this week about the accident and steps that the company was taking to prevent other quality-control lapses.

NTSB officials also said that they will coordinate with the Department of Justice’s criminal division to provide any details they discover that may be relevant to the ongoing criminal probe into the door plug blowout.

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