Certified Known Icing for Commercial IFR operations

[Big Pistons Forever]

Anybody have a CARS reference that requires the aircraft be equiped with a certified known icing system ? The question arose with respect to a Cessna 401 being operated on a 703 OC. It is equiped with boots , hot prop and alcy windshield but the POH does not say the systen is certified for operation in known icing conditions

[Liquid Charlie]

The 401 was not certified I believe since it did not have boots between the engine and the fuselage. It has been many years since I flew one but that sticks out in my mind

[Giveitago]

BPF.

Certified known icing is covered by the Type Certificate (In this case A7CE).
The answer to your question is maybe....
as pulled from the Type Certificate here is the criteria that has to be met.

In addition to the above certification basis, compliance with ice protection has been
demonstrated in accordance with FAR 23.1419 of Amendment 23-14 effective
December 20, 1973, when ice protection equipment is installed in accordance with
Cessna Drawing 5914105 for 425, 5114400 for all other models, Factory Kit (FK) No.
194, Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual.
Aircraft which have been modified in compliance with Accessory Kit (AK) No. 421-106
are considered to be equivalent to those with Factory Kit (FK) No. 194

If it's a burning question you can find out what the cessna factory kit no. 194 consists of....this was kind of the extent of my motivation.

Give

[black hole]

I think that some tome around 1903 or 04 cessna cam out with a bulletin prohbiting all Twins with tip tanks from flight in ice. As I read it then it seemed to be a (cover your ass ploy) from Cessna. I cant remember what the rest said now but I know that there were mods to do. As far as commercial operations are concered: there are more rules than just the plane. Has to do with the conditon of the de icing equipment now, and something to do with pilot training and such.

[ditar]

I think that some tome around 1903 or 04 cessna cam out with a bulletin...

I didn't realize Cessna invented the Wright Flyer.

[black hole]

Sorry: that should have read 1993 or 94.

BH

[KISS_MY_TCAS]

Do NOT get into ice with a 401, seen it once, hope to never see it again. Tip tank Cessnas are atrocious in ice, I have personally on a few occassions seen pilots land shit scared they weren't going to make it back to the airport at full power with the airframe contaminated. I also knew the pilot that bounced a 310 off a building in downtown Calgary in ice, unfortunately he met his maker years later in Kananaskis, rest his soul but I will never forget his story flying that 310 into Calgary. Cessna covered thier asses by not allowing certification into known icing, the onus is now on the pilot. My friend fucked up, hopefully fewer do after his incident.

[CP]

Flew lots of twin cessnas is the winter in Canada and cant remember ever having any nasty surprizes with ice. Same goes for Navajoes.