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What is PROC on Airbus A320? (Procedure)

The Airbus A320 is a popular aircraft used by airlines around the world. It is known for its efficiency, reliability, and advanced technology. One crucial aspect of operating the A320 is following the proper procedures to ensure safe and smooth flights. In this article, we will explore the different procedures on the Airbus A320 and their importance in aviation operations.

The Importance of Procedures

Procedures, often abbreviated as PROC, play a crucial role in aviation safety. They provide a standardized and systematic approach to various tasks and emergencies that can occur during flight. Following procedures ensures that pilots, flight attendants, and other crew members are on the same page and can effectively handle any situation that arises.

Procedures on the Airbus A320 cover a wide range of areas, including pre-flight checks, normal operations, abnormal situations, and emergency procedures. Let’s delve into each of these categories in more detail.

Pre-Flight Procedures

Before each flight, pilots and the flight crew need to perform a series of pre-flight procedures to ensure the aircraft is in optimal condition and ready for departure. These procedures involve thorough inspections of the aircraft, checks of various systems, and the completion of necessary documentation.

One essential pre-flight procedure is the walk-around inspection, during which the pilot visually inspects the exterior of the aircraft. They look for any signs of damage, such as dents or scratches, and check for proper operation of control surfaces, such as the elevators and ailerons. Additionally, the crew inspects the tires, fuel quantity, and engine cowling to ensure everything is in order.

Inside the cockpit, the pilots perform checks of the avionics systems. These checks include verifying the correct display of vital information on the primary flight displays, ensuring communication systems are functional, and conducting flight control checks. The pilots also input the flight plan into the flight management system (FMS), which helps guide the aircraft during the flight.

Normal Operations

During normal operations, the crew follows a set of procedures to ensure the safe and efficient management of the flight. These procedures cover various aspects, including takeoff, climb, cruise, descent, and landing.

Before takeoff, the pilots perform a series of checks to ensure that the aircraft’s systems are functioning correctly. These checks involve verifying the correct configuration of the flight controls, ensuring proper engine operation, and confirming that all required systems are functioning as expected. The pilots also crosscheck their flight instruments to ensure they have consistent and accurate readings.

During the climb, cruise, and descent phases of the flight, the pilots follow specific procedures to maintain a safe altitude, adjust engine settings, and monitor the aircraft’s systems. These procedures include monitoring fuel levels, managing cabin pressure, and communicating with air traffic control.

Abnormal Situations and Emergency Procedures

While rare, abnormal situations and emergencies can occur during a flight. Procedures are essential in guiding the crew on how to respond to these situations calmly and effectively.

Abnormal situations refer to unexpected events that may require the crew to deviate from normal procedures. These situations can include engine malfunctions, system failures, or unusual weather conditions. The pilots rely on their training and the aircraft’s documentation, such as quick reference handbooks (QRHs) and abnormal and emergency checklists, to address these situations appropriately.

In the event of emergencies, such as fire, loss of cabin pressure, or the need to evacuate the aircraft, the crew follows well-established emergency procedures. These procedures prioritize the safety and well-being of the passengers and crew and provide step-by-step instructions on how to handle the emergency. Regular training and recurrent simulations help ensure that the crew can respond swiftly and effectively in these high-stress situations.


The Airbus A320 operates based on a comprehensive set of procedures covering pre-flight checks, normal operations, abnormal situations, and emergency procedures. These procedures ensure that pilots and crew members have a standardized approach to handling various situations that may arise during flight. By following established procedures, the crew can maintain a high level of safety, efficiency, and professionalism.

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