Deutsche Lufthansa AG Chief Executive Officer Carsten Spohr predicted another year of financial and operational challenges ranging from uncertain aircraft deliveries to high oil prices and cost pressure at home that will force the airline to sharpen efficiencies.

Boeing Co. secured an order from China Southern Airlines Co. valued at $3.62 billion, marking an important win for the US manufacturer after seeing orders dry up from Asia’s largest aviation market in the past decade.

Airbus SE is unsure of reaching next year’s production target for its best-selling A320 jet because Pratt & Whitney may not be able to supply enough engines, the planemaker’s chief executive officer said.

Rolls-Royce Holdings Plc said it can win back business and secure new deals with an upgraded Trent 1000 engines powering Boeing Co.’s 787 model, after years of losing ground on the US planemaker’s bestselling widebody aircraft.

IAG SA, the parent of British Airways, said Chief Financial Officer Nicholas Cadbury will step down and leave the group in the middle of the year.

Airbus SE said the vast majority of the about 6,000 A320-family aircraft impacted by a software glitch have received the necessary modification over the weekend, helping the European planemaker sidestep a wider disruption in what has become the company’s largest recall to date.

As Airbus SE enters the last month of the year trying to meet an ambitious aircraft delivery target, the European planemaker finds itself confronted with a fresh challenge that’s come out of the blue.

Airlines across the world raced to keep their fleet operating after a major software glitch forced an urgent update for Airbus SE’s most widely flown aircraft, with the rapid response avoiding a major meltdown during a crucial holiday-travel season.

Airbus SE cautioned that more than half of its active A320 jetliner family fleet will need a software fix after a recent incident involving a JetBlue Airways Corp. airliner revealed that “intense solar radiation” could corrupt data that helps maintain functioning flight controls.