What action is required if continuous ignition is necessary after the engines are started?

If continuous ignition is necessary after the engines are started, cycling the ENG MODE selector to NORM and then back to IGN/START is required to engage the continuous ignition system. This action ensures that the ignition is activated properly for the operational environment, especially in conditions that may require additional engine protection or reliability, such as during turbulence, heavy rain, or potential engine flameout scenarios.

The ENG MODE selector plays a critical role in the management of engine ignition systems on the A320. By cycling it, the aircraft’s systems reset and enable the continuous ignition functionality, allowing for sustained ignitor operation. This is particularly important to enhance engine performance and safety during specific flight conditions.

Understanding the importance of the ENG MODE selector’s function helps pilots ensure that engine systems react appropriately under varying environmental conditions. Other options, although relevant to different aspects of flight operations, do not pertain directly to the requirement for activating continuous ignition post-engine start.