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Panel Mod

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gfhperry(at)gmail.com
Guest

Posted: Tue Mar 07, 2017 6:56 pm Post subject: Panel Mod

Hi All,



I would like to change my round dial six pack of instruments for an MGL glass panel. As my Europa is on the British register, I will need to get approval for the change. Has anyone with a G reg Europa done this Mod? If so could you give me details? 



Thanks guys.



Glenn Perry G-DLCB Classic Mono

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JonathanMilbank

Joined: 14 Apr 2012
Posts: 397
Location: Aberdeen area

Posted: Wed Mar 08, 2017 2:36 am Post subject: Re: Panel Mod

Hi Glenn,



I did a partial panel change to install a Dynon EFIS a couple of years ago. As far as I'm aware, changes on the panel are a matter between you and your LAA inspector.



Best wishes.

Jonathan

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brian.davies(at)clara.co.
Guest

Posted: Wed Mar 08, 2017 3:26 am Post subject: Panel Mod

Jonathon,



You are quite right in saying that there is room for applying " Standard

Aircraft Practice" when designing your panel when this is not specified in

the build manual.  LAA leaflet TL 3.10 explains this.



However, (there is always one these, isn't there!) there are some other

things to consider.



When your panel design was initially approved by the LAA they were required

by the CAA to satisfy themselves that you had complied with the regulations

regarding the minimum instrument fit for VFR flight in accordance with the

ANO and also to check the same for engine instrumentation.  Once the LAA has

approved your aircraft build the LAA then submits an Airworthiness Approval

Note (AAN) to the CAA that is the basis of approval for your initial Permit

to Fly.  Technically, if you modify your aircraft so that it no longer

conforms to the condition it was in when that initial approval was granted,

you have invalidated your Permit to Fly.  Hence the need for a Mods approval

system in the UK.



When fitting an EFIS the LAA will want to know that you have considered the

failure situation of a system that now relies on electrical power in order

to comply with the regulations.  This requires the fitment of a standby ASI,

Altimeter and compass as a minimum.



So, the safest route is to consult LAA engineering and your inspector before

changing from a traditional six pack to an EFIS.



Regards



Brian Davies



--

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