Air Transport World

Rule changes in icing conditions proposed.(Brief Article)

FAA has proposed a series of rule changes designed to improve flight in icing conditions for 17 mostly regional aircraft equipped with deicing boots, The NPRM would require the immediate use of boots at the first sign of ice formation anywhere on the aircraft or upon alert of an ice-detection system, whichever occurs first. If adopted, the rule also would require continued use of hoots as long as icing conditions are present.

Currently, pilots often delay deploying boots in order to avoid so-called ice bridging. These ice formations above the furthest extension of the boots occurred in older-generation versions that were not powerful enough to shed ice completely. The commonly held belief was that premature use of even modern boots would cause formations that could not be shed. …

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