Mailing List lml@lancaironline.net Message #62455
From: swaid rahn <indigoaviation@gmail.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Chelton - loss of attitude info
Date: Thu, 28 Jun 2012 10:27:18 -0400
To: <lml@lancaironline.net>
I had a problem where the two units were not talking to each other. It happened after I sent them in for a repair. They updated the software. Turns out originally one was number "0" and the other was number"1". Each unit was acting independently from each other as far as internal time keeping. After I would fly it 15+ min. I would get a Red "X" on the PFD. Once we went in and reset them to number "1" and "2", "1" could be the master and "2" was the slave. I also sent everything in and it would always bench check fine.
 That one was a head scratcher. Also happened during one of the buyout transitions, not a good time.
Swaid

On Wed, Jun 27, 2012 at 12:55 PM, PAUL HERSHORIN <paulhershorin@bellsouth.net> wrote:
I had the same problem at about 40 hours. I sent the AHRS in and it has been the greatest ever since.
Paul Hershorin

--- On Wed, 6/27/12, Dr. Weinsweig <weinsweigd@tsnci.com> wrote:

> From: Dr. Weinsweig <weinsweigd@tsnci.com>
> Subject: [LML] Re: Chelton - loss of attitude info
> To: lml@lancaironline.net
> Date: Wednesday, June 27, 2012, 10:25 AM
> call cobham tech support
>
> the last contact i had was robert durall 
> robert.durall@cobham.com
>
>
> 800-872-7832
>
> as far as i know he replaced david black
>
> if that number doesn't work i have other numbers for them.
> not sure which is correct number or go to cobham's website.
>
> cobham gave good tech support as of my last dealings with
> them about a year ago.  the cheltons are great but i do
> fear that someday they may be obsolete as far as support
> goes.  hopefully not so soon........
>
> david weinsweig
> n750dw propjet with cheltons
>
> >>> jbarrett@carbinge.com
> 6/27/2012 9:51 AM >>>
> Hello LML'rs,
>
>
>
> I am flying off the last few hours of my Phase I program on
> my IVP and this
> weekend I was about one hour into a flight when the Cheltons
> produced the
> RED X of death on the PFD screen.  Of course Bitchin'
> Betty put in her $.02
> as well and she has been reminding me ever since.  Have
> tried rebooting and
> turning off/on EAU, AHRS etc to no avail for about five
> hours of flight time
> now. 
>
>
>
> Have Crossbow 500.  Anyone have suggestions for
> troubleshooting and
> correcting? 
>
>
>
> When I was doing  ground runs last year and taxiing
> around etc, I would
> notice frequent but apparently random incidences of this
> failure as well as
> GPS failures, shut down and rebooting of one or both of the
> IDU's and so on,
> but since we've been flying, I had not seen this type of
> anomaly occur.
>
>
>
> Regards,
>
>
>
> John Barrett, CEO
>
> Leading Edge Composites
>
> PO Box 428
>
> Port Hadlock, WA 98339
>
>
>
> www.carbinge.com
>
>
>
>
>
> --
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>

--
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--
Swaid L. Rahn
Indigo Aviation, Inc.
940 Mock Road
Springfield, Ga. 31329
Cell 912.655.0966


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