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De-icing Conditions  
User currently offlineUnited4EverDEN From , joined Dec 1969, posts, RR:
Posted (11 years 6 months 3 weeks 5 days 21 hours ago) and read 3055 times:


I was wondering what condition must exist to for ANY kind of fluid to be sprayed on the plane, whether it be deicing fluid or a something that prevents icing.

Also, what if the destination of the plane has severe icing conditions? i.e. a plane going from HNL to ANC in the dead of winter? Are any preventative measures taken then?


3 replies: All unread, jump to last
User currently offlineEMBQA From United States of America, joined Oct 2003, 9451 posts, RR: 10
Reply 1, posted (11 years 6 months 3 weeks 5 days 19 hours ago) and read 3020 times:

Normally it's visible freezing moisture.... snow, sleet, freezing rain. If its 40 degs and raining there in no need to de-ice, although some airlines and aircraft has established temperature and weather condition requirements.

As far as inbound flight to icing conditions, there is no real preparation.

"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineAvioniker From United States of America, joined Dec 2001, 1109 posts, RR: 10
Reply 2, posted (11 years 6 months 3 weeks 5 days 17 hours ago) and read 2982 times:

On the MD80, if the temp is below 50F in high humidity, or visible precip, or frost on the bottom of the wing, a tactile inspection must be made of the top of the wing and appropriate action must be taken. Be it deice or anti-ice.

One may educate the ignorance from the unknowing but stupid is forever. Boswell; ca: 1533
User currently offlineAir2gxs From , joined Dec 1969, posts, RR:
Reply 3, posted (11 years 6 months 3 weeks 5 days 13 hours ago) and read 2848 times:

Visible precip or high humidity and close to freezing temps usually call for anti-ice.

Aircraft are anti-iced/de-iced enroute by aircraft systems. Rarely is there a concern for an aircraft flying into icing conditions, as long as the aircraft is working properly and the crew respond to the conditions properly.

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