about the exact actions for a particular aircraft type.
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Any specific actions recommended by the manufacturer given in the FCOM are complied with
18.3.3 Consider whether communication and information with the ground staff is/has been adequate.
18.3.4 The minimum requirement is to receive the anti-icing information in order to figure out the available protection time from the holdover timetable.
18.3.5 Do not consider the information given in the holdover timetables as precise. There are several parameters influencing holdover time. The timeframes given in the holdover timetables consider the very different weather situations worldwide. The view of the weather is rather subjective; experience has shown that a certain snowfall can be judged as light, medium or heavy by different people. A pre take-off contamination inspection is always required when ground icing conditions exist.
18.3.6 As soon as the treatment of the aircraft is completed, proceed to engine starting or if de/anti-icing is carried out with the engines running, then proceed as directed by the controller.
18.4 Taxiing
18.4.1 During taxiing, the flight crew should observe the intensity of precipitation and keep an eye on the aircraft surfaces visible from the cockpit. Ice warning systems of engines and wings or other additional ice warning systems must be considered.
18.4.2 Sufficient distance from the preceding aircraft must be maintained, as blowing snow or jet blasts can degrade the anti-icing protection of the aircraft.
18.4.3 The extension of slats and flaps should be delayed, especially when operating on slushy areas. However, in this case slat/flap extension must be verified prior to takeoff.
18.5 Take off
18.5.1 Recommendations provided in the aircraft-specific FCOM, regarding performance corrections or procedures applied when operating in icing conditions should be considered.
18.6 Pre-take off decision making
18.6.1 The PIC is responsible for ensuring that the aeroplane meets the “CLEAN AIRCRAFT CONCEPT”.
18.6.2 After De-Icing / Anti-Icing, during taxi to the runway, the flight crew are to perform the pre-take-off check without interruption.
18.6.3 During ground icing conditions a thorough Pre-Takeoff Contamination Inspection of the representative surface is required. The representative surface is the wing area from the leading edge of the slat to the trailing edge of the flap between the engine pylon (inboard engine pylon for four engine aeroplanes) and the evacuation walkway.
18.6.4 When conducting a Pre-Takeoff Contamination Inspection of the representative surface, special attention should be paid to the leading edge in conjunction with the trailing edge of the wing since the fluid is likely to fail in these areas first. Either the right or the left wing may be inspected from the cabin windows in conditions of adequate light to check for signs of contamination. External lighting may be used for this purpose. The inspection may be conducted by the PIC or by the First Officer. In case of any doubt regarding contamination of the critical surfaces, the PIC is to take the decision to de-ice again.
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本文链接地址：Cold Weather Deicing/Anti-icing Manual 寒冷天气除防冰手册 Operations Manual Training 运行手册培训(23)
