The hearing will mark the first appearance before Congress by Calhoun – or any other high-ranking Boeing official – since a panel blew out of a 737 Max during an Alaska Airlines flight in January. No one was seriously injured in the incident, but it raised fresh concerns about the company’s best-selling commercial aircraft. The hearing will mark the first appearance before Congress by Calhoun – or any other high-ranking Boeing official – since a panel blew out of a 737 Max during an Alaska Airlines flight in January. No one was seriously injured in the incident, but it raised fresh concerns about the company’s best-selling commercial aircraft. Economic Times