> For the complete documentation index, see [llms.txt](https://docs.flightsim-studio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flightsim-studio.com/e-jet-series/systems-guide/main-panel/eicas/cabin-alt-lfe.md).

# CABIN ALT / LFE

### CABIN ALTITUDE INDICATION <a href="#cabin-altitude-indication" id="cabin-altitude-indication"></a>

* Displays cabin altitude in feet, regardless of the operating mode.
* Green – normal operating range, Amber – cautionary operating range, Red – warning operating range.

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### CABIN RATE OF CHANGE INDICATION <a href="#cabin-rate-of-change-indication" id="cabin-rate-of-change-indication"></a>

* Displays the cabin rate of change in fpm, regardless of the operating mode.
* Green – normal operating range, Amber cautionary operating range.

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### DIFFERENTIAL PRESSURE INDICATION <a href="#differential-pressure-indication" id="differential-pressure-indication"></a>

* Displays the differential pressure between the cabin interior and the outside in psi, regardless of the operating mode.
* Green – normal operating range, Amber cautionary operating range.

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### LANDING FIELD ELEVATION INDICATION <a href="#landing-field-elevation-indication" id="landing-field-elevation-indication"></a>

* <mark style="color:red;">Displays the landing field elevation in feet, regardless of the operating mode.</mark>
* <mark style="color:red;">Green – inputs from FMS, Cyan – Manual input. A cyan “M” in front of the altitude readout indicates manual input.</mark>
* <mark style="color:red;">Amber dashed – Invalid information or value out of displayable range. Manual operation is active.</mark>
* <mark style="color:red;">Flight plan on MCDU must be closed to display landing field elevation (LFE) on EICAS.</mark>

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### HI FIELD INDICATION <a href="#hi-field-indication" id="hi-field-indication"></a>

* <mark style="color:red;">Displays HI FIELD label whenever the Cabin Altitude is in High Altitude operation mode.</mark>