Anti-ice controls and valve status

Open ANTI ICE

Select the relevant anti-ice page.

Select the anti-ice synoptic and identify the engine and wing indications. FSS says the APU icon appears only on the ground.

Read the valve state

Compare valve symbol and reported state.

FSS describes green with the line aligned as open, and white with the line across the flow as closed. It also lists amber-dashed, failed-closed and failed-open states in red text, but does not explain the highlighting on its current Welcome page. Treat these additional fault cues as unverified until confirmed in your installed aircraft.

Read the flow line

FSS uses line colours for pressure state.

FSS describes green as pressurised and white as not pressurised. The page also lists overheat and undetermined colour states in red-highlighted text without explaining the highlighting. Check the indications actually available and follow the applicable procedure.

Compare the overhead

Check engine and wing controls and the AUTO/ON mode against the flight phase and conditions.

Check the takeoff dataset

For a departure, compare the actual anti-ice configuration with REF A/I in the accepted TRS dataset.

Pressure and temperature labels

A pressure heading and temperature text conflict.

The FSS ANTI ICE page labels one item as pressure but describes it as digital temperature. Read the field label in the installed cockpit and do not infer temperature or pressure from the conflicting wording alone. ^[198]