Lean alert settings may be adjusted, enabled or disabled. Depending on the sensors available, the alerts will either provide a change in temperature alert or a Rich of Peak (ROP)/Lean of Peak (LOP) alert. When the alert is triggered the “Peak D“ status value will be highlighted.

The change in temperature alert will occur when the first engine cylinder to peak’s Exhaust Gas Temperature has changed from its peak temperature by the specified temperature.

The Rich of Peak (ROP) alert will occur when the first engine cylinder to peak’s Exhaust Gas Temperature has changed from its peak temperature by the specified temperature and the Fuel Flow is above its peak fuel flow (rich of peak).

The Lean of Peak (LOP) alert will occur when the last engine cylinder to peak’s Exhaust Gas Temperature has changed from its peak temperature by the specified temperature and the Fuel Flow is below its peak fuel flow (lean of peak).