Reply To: Approach/Landing Climb – Inflight Icing Penalty
I think your concern over how the FAA may interpret the application of the approach/landing climb icing penalties is well founded. The basic philosophy has been that if the airplane has encountered icing conditions at any time during the flight, unless there is a means to determine that there is no airframe ice accretion present at the time of landing, the icing penalties should be applied. This is fairly consistent with John Lande’s comments above and is consistent with the use of a speed additive for a flaps 15 landing if WTAI was used at any time during the flight.
The means for determining whether or not any ice accretion exists at the time of landing for an earlier icing encounter is not cut and dried. For example, if I flew in icing conditions for ten minutes two hours ago and have been in warm tropical air for the last hour, must I still account for possible ice accretions? There isn’t any
“formula” to answer that I know of to answer that question.
former FAA certification specialist