Boeing (BA) was the worst-performing stock in the Dow Jones Industrial Average Tuesday after the American plane maker's fourth-quarter 2024 deliveries revealed a widening gap with European rival Airbus.

Boeing delivered 57 commercial planes in Q4 and 348 for the full year, down from 157 and 528, respectively, a year ago. By contrast, Airbus recently reported 269 deliveries in the fourth quarter and 766 in 2024, its highest full-year total since 2019.

Boeing's fourth-quarter production was impacted by a nearly two-month strike by its union machinists, which was resolved in November with a new contract agreement. 

Boeing Still Struggling After Alaska Airlines Incident Last January

Boeing is still trying to find its footing a year after an Alaska Airlines (ALK) flight aboard a 737 MAX plane had a door panel detach in midair. Earlier this month, outgoing Federal Aviation Administration (FAA) head Mike Whitaker said the plane maker's safety turnaround plan is "not a one-year project."

The company's latest setback came in December, when a 737-800 operated by South Korea's Jeju Air crashed into a concrete barrier and burst into flames as it tried to land, killing 179 people. 

Shares of Boeing slid 3% intraday and have lost nearly a quarter of their value over the past year. The company will report its fourth-quarter results on Jan. 28.