A global outage on December 3 disrupted airport check-in systems in India, affecting IndiGo, SpiceJet, Akasa Air, and Air India Express. The issue stemmed from problems with Microsoft Windows services, forcing airlines to resort to manual check-ins, resulting in long queues for passengers. IndiGo acknowledged delays and cancellations, stating, "Our teams are working diligently to ensure operations normalize as soon as possible." The incident underlines the aviation sector's dependency on digital systems.