Jump to content

Recommended Posts

Posted

Good morning Mooney Space! I've seen a few other topics that had died out without concreate answers on the removal of the annunciator panel found in Mooney instrument panels.

My question is, can the factory annunciator panel be removed when installing modern avionics such as a Garmin G500 TXi with EIS? Does this deviate from how the aircraft was originally certified? 

Current annunciations: Gear Down, Gear Unsafe, Left Fuel, Right Fuel, Speed Brake, Alt Air, Prop Deice, Pitot Heat, HI/LO Vav, Alt Volts, Start Power, STBY Vac, Trim Fail, Emerg Bus, Boost Pump. 

The Garmin G500 TXi with EIS and the GFC 500 autopilot will replace most of these. I am pretty sure of the answer, I just figured I would ask to ask! 

Lastly, without clouding the original question, has anyone replaced the annunciator bulbs with LED bulbs (annunciator, not post lights)? If so, how do they dim and do they affect any other systems? 

Annun Lts.jpg

Posted
33 minutes ago, LANCECASPER said:

Or you can just move it over to the left panel above the TXi and make it more noticeable to the pilot.

Thanks Lance, that is the plan. We’ve heard different things so we figured we’d get some input.

Posted

For those lights you need to keep, you might be able to swap out the annunciator with a 1 row version. It is however currently out of stock - check with LASAR. 

Posted

Sure:

94ad06876d006b7f109d2afa34a57ff7.jpg

I removed the vacuum system.
JPI replaces fuel and voltage annunciations.
Gear annunciations replaced by simple lights.
Ram air was removed, so no ram air annunciation.

So nothing left for the annunciator to do.

Edit: your version has extra annunciations, they might be replaced by simple lights, with possible exception of “trim failed”. If you replace autopilot with GFC500, it will have it’s own annunciation on G5/GFX.

Posted

Look in the TCDS. If the annunciator panel is not mentioned, you should be OK. 

It still amazes me that we are not allowed to modify our planes in any way without STC approval, except for our panels.

  • Like 1
Posted

On my last upgrade the only annunciator left was the gear so I removed the annunciator panel and replaced the gear annunciators with an Eaton style annunciator with a push to test.  I checked the TCDS and there was no mention of the annunciator panel that I could find so the shop agreed it was legal to remove.

Posted

Check the MEL in the POH… limitations section.  IFR,VFR,DAY,NIGHT….

I don’t see an annunciator panel… but, many of the lights are called out individually….

 

PP thoughts only, not a mechanic…

Best regards,

-a-

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.