A number of UK airports use "environmentally friendly" so called anti/de-icing fluid. Water authorities are very keen to know what is flowing into the drainage system so airports have to be seen to be responsible in amounts and type of fluids being used. These fluids are no where near as effective as the right stuff. They are also very costly. So perhaps with a questionable weather forecast for the local area together with a lack of awareness by the airport team of the unforecast deteriorating conditions the "ineffective" fluid may have been applied at the wrong time and possibly at the wrong spread rate for the conditions.
Well done
Musket90 you are spot on. The fluid they use is called "Clearway" and isn't a patch on "Konsin" which was the previously used Glycol based de-icer.
The slick conditions they ended up with explains why braking action reports were not available - you can't get a Mu-meter reading off sheet ice
