Business

The top ranks of Boeing’s management were overhauled amid investor unease about safety checks on its airliners. In January a panel fell from a 737 Max 9 passenger jet soon after take-off. Several incidents have been reported since then, including a 777 that lost a landing-gear tyre when it was taking off. Boeing safety has become a meme on TikTok. Dave Calhoun is to step down as chief executive by the end of the year and Larry Kellner departs as chairman. The head of the commercial-aircraft division has been replaced with immediate effect.