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.
