Which statement best describes the use of the Green hydraulic system as it relates to normal landing gear extension?

The statement about the Green hydraulic system correctly describes that the hydraulic system remains pressurized with the gear extended. In the A320, the Green hydraulic system is specifically utilized for the operation of the landing gear. When the landing gear is extended, hydraulic pressure is maintained to ensure that the gear remains securely locked in place until a deliberate retraction is initiated by the pilots.

This characteristic is essential for the safety and reliability of the landing gear mechanism during operation. It prevents any unintended gear movement, providing confidence to the flight crew that the landing gear will stay deployed when required. The hydraulic system's ability to maintain pressure is crucial for landing gear functionality and overall aircraft safety, particularly during landing and takeoff phases.

Understanding this function is key for pilots and technicians to ensure the aircraft's systems operate as designed, especially in emergency scenarios where manual gear operation might be necessary.