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14.1.3 Should it be necessary for an aircraft to be re-protected prior to the next flight, the external surfaces must first be de-iced with a hot deicing type I fluid mix before a further application of anti-icing fluid is made.
14.1.4 The aircraft must always be treated symmetrically -the left hand and right hand sides (e.g. left wing/right wing) must receive the same and complete treatment.
14.1.5 Engines are usually not running or are at idle during treatment. Air conditioning should be selected OFF. The APU may be run for electrical supply but the bleed air valve should be closed.
14.1.6 Ice snow or frost dilutes the fluid. Enough hot de-icing fluid is to be applied to ensure that re-freezing does not occur and all contaminated fluid is driven off.
14.1.7 All reasonable precautions must be taken to minimize fluid entry into engines, other intakes / outlets and control surface cavities.
14.1.8 Do not spray de-icing / anti-icing fluids directly onto exhausts or thrust reversers.
14.1.9 De-icing / anti-icing fluid should not be directed into the orifices of pitot heads, static vents or directly onto angle-of-attack sensors.
14.1.10 Do not spray fluids directly onto flight deck or cabin windows because the heat and pressure can cause cracking of acrylics or penetration of the window sealing. Fluid may be sprayed on to the fuselage above the windows and allowed to run down if windows require de-icing.
14.1.11 All doors and windows must be closed to prevent:
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PAGE 14-2 LIMITS AND PRECAUTIONS CHAPTER 14
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Galley floor areas being contaminated with slippery de-icing/anti-icing fluids.
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Upholstery becoming soiled
14.1.12 Any forward area from which fluid may blow back onto windscreens during taxi or subsequent takeoff should be free of fluid residues prior to departure. If Type II or IV fluids are used, all traces of the fluid on flight deck windows should be removed prior to departure, with particular attention being paid to windows fitted with wipers.
14.1.13 De-icing/anti-icing fluid can be removed by rinsing with clear water and wiping with a soft cloth. Do not use the windscreen wipers for this purpose. This will cause smearing and loss of transparency.
14.1.14 Landing gear and wheel bays must be kept free from build-up of slush, ice or accumulations of blown snow.
14.1.15 Do not spray de-icing fluid directly onto hot wheels or brakes.
14.1.16 When removing ice, snow or slush from aircraft surfaces, care must be taken to prevent it entering and accumulating in auxiliary intakes or control surface hinge areas, i.e. remove snow from wings and stabilizer surfaces forward towards the leading edge and remove from ailerons and elevators back towards the trailing edge.
14.1.17 Do not close any door until all ice has been removed from the surrounding area.
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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(17)
