This guidance (ON76) is for duty holders operating installations served by helicopters requiring icing inhibitors (FSII) to be mixed with their fuel load when the outside air temperature (OAT) falls below a specified level.


This guidance (ON76) is for duty holders operating installations served by helicopters requiring icing inhibitors (FSII) to be mixed with their fuel load when the outside air temperature (OAT) falls below a specified level.
Ask an expert 0845 345 0055