Boeing said Wednesday that the head of its 737 jetliner program is leaving the company in an executive shake-up weeks after a door panel blew out on a flight over Oregon, renewing questions about safety at the company.

Boeing announced that Ed Clark, who had been with the company for nearly 18 years and led the 737 program since early 2021, was leaving immediately.

Clark oversaw the factory in Renton, Washington, where final assembly took place on the Alaska Airlines 737 Max 9 involved in last month’s accident. Federal investigators said bolts needed to help keep a panel called a door plug in place were missing after repair work on the plane.

Katie Ringgold, a vice president in charge of delivering 737s to airlines, will succeed Clark as vice president and general manager of the 737 program and the Renton factory.

Nvidia Corp., which has seen its value skyrocket over the past year thanks to soaring demand for its graphics chips used for artificial intelligence, posted stronger-than-expected results for the latest quarter, with its revenue more than tripling from a year earlier.

Nvidia’s revenue for its fiscal fourth quarter was $22.1 billion, up from $6.05 billion.

The company based in Santa Clara, California, earned $12.29 billion, compared to a profit of $1.41 billion a year ago.

The company’s specialized chips are key components that help power different forms of artificial intelligence, including the latest generative AI chatbots such as ChatGPT and Google’s Gemini.

Nvidia carved out an early lead in the hardware and software needed to tailor its technology to AI applications, when founder and CEO Jensen Huang began to nudge the company into what was then seen as a still half-baked technology more than a decade ago.