The Federal Aviation Administration (FAA) has received your proposal dated June 22, 2017, proposing FAA approval of a global AMOC to AD 2017-11-11 for a NavWorx ADS600-B, Part Numbers 200-0012 and 200-0013. AD 2017-11- 11 requires the ADS600-B unit to be removed or disabled if it is not coupled to an approved NexNav Mini GPS receiver, PIN 21000.
You are proposing a global AMOC to paragraph (e)(l)(iv)(A) of AD 2017-11-11 by coupling the ADS600-B with Garmin GTN 650 or 750 series Global Positioning System (GPS) sources.
Your proposal provides an acceptable level of safety to (e)(1)(iv)(A) based on your installation drawings, which document the coupling of the ADS600-B unit with a Garmin GPS source, and the Public ADS-B Performance Report of May 10, 2017. For section (e)(l )(iv)(B), you proposed a placard next to the ADS600-B unit that states, "OPERATION USING THE INTERNAL POSITION SOURCE IS PROHIBITED. USE OF THE GARMIN GTN-650(750) EXTERNAL POSITION SOURCE IS REQURED" .
The Fort Worth Aircraft Certification Office (ACO) approves your AMOC proposal to paragraph (e)(l)(iv)(A) and (B) of AD 2017-11-11 by using Garmin GTN 650 or 750 as an external GPS source in place of the NexNav Mini and adding the placard as described above. Furthermore, the application of this AMOC will bring the ADS-B system into compliance with TSO C154c and 14 CFR ?91.227 requirements.
In accordance with FAA Order 8110.103B, the following conditions apply:
? Before using this AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local Flight Standards District Office/Certificate Holding District Office.
? All provisions of AD 2017-11-11 that are not specifically referenced above remain fully applicable and must be complied with accordingly .
? This FAA AMOC is transferable with the aircraft to an operator who operates the aircraft under U.S. registry .