I sent my Chelton EFIF in do to a recall---they did something and I nolonger had Ryan TCAD display.  I sent the Ryan in for repair-$1500 later I get the Ryan back and still no read out--come to find out that when Chelton did the recall they removed something in the EFIS that read the altitude--now I am told that I must install a ground of some nature that will allow the altitude to be read---I question if ther was ever a thing wrong with the Ryan system--Chelton should may me for there error---it will be $2000 to $2500 by the time all is over.

Paul Hershorin

471LA

-------------- Original message from "billhogarty@hughes.net" <billhogarty@hughes.net>: --------------


>
> My KLN 89B GPS is showing an error message that states "altitude
> fail". Originally the msg was intermittant but now is pretty constant.
>
> My pitot-static system appears to be O.K. and my "altitude hold"
> autopilot function is also O.K.
>
> Any thoughts? Anyone else encounter this problem ?
>
> Regards, Bill Hogarty
>
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