Snow? Sure, there will be upcoming delays due to snow, but stop and remember how you got to the airport. Did you drive fast or slow because of the visibility? What were the road conditions, was it slippery? Icy? Were cars going quicker or slower around you? Were there any vehicles in the ditch because of the road conditions?
When it snows, many things have to happen on top of the normal operation of getting your plane to the runway.
Snow has to be removed from the gate area in order for the plane to see the center taxi line so it doesn't taxi off of the taxi-ways.
Just like the roads and highways, special snow-removal trucks go out to clear the snow and ice on the taxi-ways, as well as the runways, to ensure these are clear for the planes.
Both instances are done with the engines turned off. This prevents any fluid getting into the air that you breathe on the planes. Special trucks will quickly go around the plane to remove as much snow and ice as possible. Once this is done, you may smell a slight odor upon engine start, but that's normal.
Hopefully there won't be too many delays this upcoming winter season, but do take a second and ask yourself how you got to the airport and what the conditions were like. Don't take the frustrations of delays out on the innocent flight crews, they want to get you to your destination as much as you want to get to your destination.
Despite some improper de-icing procedures that American Airlines had at Washington National Airport at the time, it was freezing and snowing, the crew did not activate the engine anti-ice system. Analysis of the cockpit voice recorder determined that, during the departure checklist, the copilot announced, the pilot confirmed, that the plane's own engine anti-icing system was turned off. This system uses heat from the engines to prevent sensors from freezing and providing inaccurate readings.
Adding to the plane's troubles was the pilots' decision to maneuver closely behind a DC-9 that was taxiing just ahead of the Air Florida aircraft prior to takeoff, due to their mistaken belief that the warmth from the DC-9's engines would melt the snow and ice that had accumulated on Flight 90's wings. This action — which went specifically against flight manual recommendations for an icing situation — actually contributed to additional icing on the 737. By sitting behind the preceding aircraft, the exhaust gases melted the snow on the wings. During take off, instead of falling off the plane, this slush mixture then froze on the wings' leading edges and the engine inlet nose cone.
So, remember next time there are severe delays due to the snow outside, stop to remember that rushing the departure will lead to steps not being taken or missed. That is something NONE of us want to happen.
When you sit down for dinner during the holidays after a flight, stop and be sure to be Thankful of the miraculous feats that got you there, even if you did get there late.