Thick anti-icing fluid a safety concern

The FAA issued a safety alert for operators (Safo 01001) warning operators of aircraft with unpowered elevator controls that control forces may increase after application of Type II or IV anti-icing fluids. The Safo is the result of reports to the FAA of rejected takeoffs due to above-normal control pressure needed to achieve rotation. These rejected takeoffs were initiated at speeds above Vr or V1, according to the FAA. “Fortunately, these rejected takeoffs did not occur on runways of limited length.” Pilots need to be trained to deal with the increased control forces without rejecting takeoffs unnecessarily and also ensure that the correct de/anti-icing fluids are being applied properly according to manufacturer procedures. Safos are available at: www.faa.gov/other_visit/aviation_industry/airline_operators/airline_safety/safo/all_safos/.