The Senate Commerce Committee is completing preparations for a hearing about Boeing this month, and members expect to use it to interview the company’s chief executive, Dennis A. Muilenburg, about the crashes and grounding of the 737 Max, according to four people familiar with the matter.

Mr. Muilenburg is already scheduled to appear before the House Transportation and Infrastructure Committee on Oct. 30. The Senate hearing is expected to take place on Oct. 29 or after the House hearing on Oct. 30, according to the people, who spoke on the condition of anonymity because the hearing was not yet confirmed.

The occasion will be the first time that Boeing executives address Congress about the two crashes, as frustration with the company mounts on Capitol Hill and throughout the aviation industry. John Hamilton, the chief engineer of Boeing’s commercial airplanes division, is also expected to testify at the House hearing, and may also appear at the Senate hearing.

The hearings come on the heels of the removal of Mr. Muilenburg’s title as chairman of the Boeing board last week. They are expected to cover everything from the design, certification and marketing of the 737 Max to what happened on the flights that crashed.