Global airlines moved fast to fix the Airbus jet software issue after a major alert forced hundreds of flights to stop across Asia and Europe. The alert came at a busy time for travel and raised fears of large delays in the United States. The problem involved Airbus A320 jets, which make up a big share of the global fleet. Airlines received instructions from regulators and were told to install updated software before the jets could fly again. Many companies worked overnight to keep their schedules stable and avoid long waits for passengers. Several major airlines said they finished or nearly finished the needed software work by Saturday. Many said the repairs did not disrupt travel. This fast work helped prevent a wider travel crisis in Asia and Europe, where many flights were at risk. The effort also eased pressure on travel plans in the United States, which is already facing heavy demand after the Thanksgiving holiday period. U.S. officials said airlines were on track to meet the deadline for full compliance and said travellers should not expect large problems. Even with this progress, one major U.S. carrier cancelled dozens of flights planned for Sunday to move ahead with repairs. Aviation experts said the situation was serious but not chaotic. They explained that the software fix did create short-term stress for airlines but was handled with calm steps. The Airbus jet software issue forced the planemaker to recall more than half of its A320-family jets. The company said it was sorry for the impact on travel and for the sudden timing of the alert. The recall followed an October flight in which a jet lost altitude due to a software event. Ten people were hurt during that incident, which is still under investigation by safety teams. The alert arrived late in the day for airlines in Europe and Asia, which helped them find space in their schedules to work on the jets. In the United States, the timing was more challenging because flights were still running during the day and passenger numbers were high. One major airline said it cancelled about seventy flights for Sunday as part of its repairs. The company said most of its jets would be ready by Sunday morning, but a smaller group would still be in progress. Some jets did not need the fix due to different software versions already in place. Another large carrier said more than two hundred planes needed the update, but the number was lower than first feared. They expected to finish most work by Saturday. Other large carriers also told reporters they had already updated all jets in their fleets. A major operator in Asia said it needed only two days to finish updates for its entire fleet. Aviation officials in India said two large carriers would also finish the repairs by Saturday. One airline in Japan cancelled more than ninety flights and said thousands of passengers were affected. A budget carrier in Taiwan said it expected some delays due to the software work. The fix required airlines to return to an older software version in the flight computer that helps measure the angle of the aircraft's nose. Some older jets also needed hardware changes. The process took up to three hours for each jet. The global fleet includes more than eleven thousand Airbus single-aisle jets, with more than six thousand belonging to the A320 model. These planes serve some of the world’s busiest routes, making the issue a major concern for travellers and airlines. Despite the risk of wide delays, tracker data showed that most airports were managing with low or moderate levels of disruption by Saturday. Industry sources later said the number of jets needing the more complex hardware fix was lower than first thought. There were also questions about solar flare radiation, which investigators believe may have played a role in the October incident. Experts said the event still needed a full study to understand the exact cause. Aviation consultants said any sudden challenge affecting so many jets will create pressure. Still, the quick response by airlines helped avoid severe problems. The global effort eased delays, protected many schedules, and kept the Airbus jet software issue from turning into a bigger crisis.