Mehmet Kaan Uzdil Posted January 1, 2019 Posted January 1, 2019 Hello guys, I will tell you some points about bad weather condition operations on Boeing 737-800 based on FCOM. The following information applies to takeoffs on wet or contaminated runways: -Do not use reduced thrust for takeoff if runway is contaminated by slush, snow, standing water or ice -Reduced thrust is allowed for takeoff on a wet runway -V1 may be reduced to minimum -Takeoffs are not recommended when slush, wet snow or standing water depth is more than ½ inch (13mm) or dry snow depth is more than 4 inches (102mm) . For cold weathers, -Icing conditions exist when OAT or TAT is 10°C or below. Do not use engine or wing anti ice when OAT or TAT is above 10°C. Engine Start Procedure -Do the normal Engine Start Procedure with following modifications: -In case of temperatures below -40°C do not start engines. Call maintenance. - If temperature is below -35°C idle engine for two minutes Wing Anti-ice Operation – On the Ground -Use wing anti-ice during all ground operations between engine start and takeoff when icing conditions exist or are anticipated. -Do not use wing anti-ice when OAT is above 10°C. Quote
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