All deposits of frost, ice, snow, and slush must be removed from where before the engine is started
Top of engine cowling forward of the ingestion warning markings
Inside the cowling
Fan Blades
Spinner
If flaps are extended upon arrival at the airplane…
Contact Station Operations to verify the flap areas have been checked free of debris
Icing conditions exist on the ground and for takeoff when
OAT is 10 degrees C or below AND visible moisture in any form is present OR while operating on ramps, taxiways or runways where snow, standing water or slush may be ingested by engines