AOG, or Aircraft on Ground, refers to a situation where an aircraft is unable to fly due to technical issues or maintenance requirements. This status can lead to significant delays and financial losses for airlines, as grounded planes cannot generate revenue. AOG situations often require immediate attention to resolve the issues and return the aircraft to service. To address AOG situations, airlines and maintenance teams prioritize parts and repairs. They may source components from suppliers or other aircraft to expedite the process. Effective AOG management is crucial for minimizing downtime and ensuring the safety and reliability of the fleet, which includes various aircraft models like the Boeing 737 and Airbus A320.