If the conditions are that bad, might i suggest beeing towed to the de-icing area, or at least have them shut down during de-icing?
Just yesterday i had a Fokker 100 visiting me for a bit of de-icing, in FZFG, and during the treatment, the crew complained about vibrations in the engines.
I offered to have a look at the fans if they shut them down, and guess what..
During the short taxi to the de-icing area, and during the treatment, the fanblades picked up a layer of 5-10 mm's of ice behind the fanblades...
As we had no equipment available at the de-icing area to remove the ice, i suggested they return to ramp to have it taken care off...
The crew agreed, started back up again, and departed...
