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 Post subject: Garmin VFR GPS question
PostPosted: Mon Jul 25, 2016 6:09 pm 
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If installing a panel dock mounted VFR GPS such as a Garmin Aera 500, what kind log entry is required? Equipment list update? There is a dedicated power source for it through a circuit breaker for it. This unit is replacing an older Garmin 196 unit that was mounted the same way. I don't have the logs in front of me to see if and how that unit was singed off.

Any advice would be very much appreciated!



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PostPosted: Mon Jul 25, 2016 8:29 pm 
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Is this in a certified aircraft, or an amateur-built?


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PostPosted: Mon Jul 25, 2016 9:25 pm 
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If you have a certified aircraft, go to the FAA RGL site (rgl.faa.gov) and navigate to Advisory Circular AC 20-138D. Section 6 of that AC contains the installation procedures for VFR GNSS equipment that has been accepted by TCCA.

As prescribed, have the system installed in accordance with the instructions in AC 20-138D, standard practices contained in AC 43.13 and in consideration of the manufactures instructions (if there are any) and have an AME sign it all off as conforming to those documents.

Make sure you have the prescribed placard.

CAR standard 571.06 has provisions to allow for use of AC 43.13 as "specified" data for this sort of installation. Some would argue that this is not a major mod and that "acceptable data" is sufficient. I would disagree. Read Appendix A of CAR standard 571.

You could alternatively get an STC for this. Major modifications need to conform to "approved" (STC) or "Specified" data. I don't think you need to go that far but you should check with your regional TCCA office to make sure they agree with your plan. Some disparity between the regions on how to interpret the CARs still exists.

:)



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PostPosted: Wed Jul 27, 2016 5:50 pm 
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thanks CID, that was helpful. (correction: its appendix 6 not section 6)


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