What is E/WD on Airbus A320? (Engine/Warning Display)

The Engine/Warning Display (E/WD) is a crucial component of the flight deck in the Airbus A320 aircraft. It provides essential information to the flight crew about the status of the engines and any warning messages that may require their attention. The E/WD serves as a central hub for monitoring the engine parameters and ensures the safe operation of the aircraft during all phases of flight.

In this article, we will explore the functions and features of the Engine/Warning Display on the Airbus A320, highlighting its importance in maintaining the safety and efficiency of the aircraft.

Functions of the Engine/Warning Display

The Engine/Warning Display on the Airbus A320 serves several critical functions that aid the flight crew in monitoring the engines and identifying any potential issues. Let’s take a closer look at these functions:

1. Engine Monitoring

The primary purpose of the Engine/Warning Display is to provide real-time information about the engines’ performance. It displays various parameters such as N1 (fan speed), N2 (core speed), exhaust gas temperature (EGT), fuel flow, oil pressure, and engine vibration levels. These parameters enable the flight crew to ensure that the engines are operating within their specified limits.

For example, the N1 and N2 values indicate the rotational speed of the engine’s fan and core, respectively. By monitoring these values, the flight crew can detect any abnormal engine behavior, such as a loss of engine power or excessive wear, which could potentially lead to a catastrophic engine failure.

The E/WD also provides information about fuel flow, allowing the flight crew to monitor the engines’ fuel consumption. This data is crucial for fuel management during flight, ensuring that the aircraft operates efficiently and optimally.

2. Warning Messages and Alerts

The Engine/Warning Display is equipped with warning and alert systems that notify the flight crew of any abnormal conditions or malfunctions in the engine systems. These warning messages appear in the form of text or symbols on the display, clearly indicating the nature of the problem and the necessary actions to be taken.

For instance, if there is a sudden drop in engine oil pressure, the E/WD will display a warning message accompanied by an appropriate symbol, indicating that the oil system requires immediate attention. The flight crew can then take prompt action to address the issue, such as initiating an engine shutdown or diverting to the nearest suitable airport for maintenance.

The warning messages and alerts on the Engine/Warning Display are crucial for maintaining the safety of the aircraft. They enable the flight crew to identify and resolve any potential issues that could compromise the performance or integrity of the engines.

3. System Synoptic Pages

In addition to engine monitoring and warning messages, the Engine/Warning Display also provides access to system synoptic pages. These pages display a graphical representation of various aircraft systems, allowing the flight crew to monitor their status and identify any abnormalities.

For example, the engine system synoptic page provides a detailed overview of the engine parameters and associated systems. It allows the flight crew to assess the health of the engines, monitor any abnormal trends, and take appropriate action if required.

The system synoptic pages on the E/WD are designed to simplify the monitoring and troubleshooting process for the flight crew. They provide a comprehensive view of the aircraft’s systems, ensuring that the flight crew has all the necessary information at their fingertips.

Importance of the Engine/Warning Display

The Engine/Warning Display plays a crucial role in the safe and efficient operation of the Airbus A320 aircraft. It enables the flight crew to continuously monitor the engines’ performance, detect any potential issues, and take appropriate actions to ensure the safety of the aircraft and its occupants.

Without the Engine/Warning Display, the flight crew would have limited visibility into the engine parameters and systems, increasing the risk of missing critical information or failing to respond to warning messages promptly.

By providing real-time data, warning messages, and system synoptic pages, the E/WD empowers the flight crew to make informed decisions and effectively manage any engine-related situations. It enhances situational awareness, reduces the likelihood of engine failures, and contributes to the overall operational efficiency of the aircraft.


The Engine/Warning Display is an integral component of the Airbus A320 aircraft, providing critical information about the engines’ performance and warning messages. It ensures that the flight crew remains informed about the engine parameters, any abnormalities, and the status of various aircraft systems. The E/WD enhances the safety and efficiency of the aircraft, allowing the flight crew to take prompt and appropriate actions when necessary.

Understanding the functions and features of the Engine/Warning Display is essential for pilots and aviation enthusiasts alike. It highlights the advanced technology and systems incorporated into modern aircraft, emphasizing the continuous efforts to enhance aviation safety and performance.

For More: What is LCN on Airbus A320? (Load Classification Number)