I highly recommend folks run these reports for their gliders with ADS-B Out installs, both 2020 Compliant and TABS installs.

But if if you glider has a SIL=1 TABS install the report will flag multiple GPS source integrity errors, that is normal. NIC, NACp, SIL, SDA will be flagged/marked red. For TABS make sure SIL and SDA show up as an average of 1.0 in the Integrity and Accuracy table

If your glider has a SIL=3 2020 Compliant install it should not be flagged for anything.

Make sure the install SIL level is appropriate for your glider, you cannot use a TN72 with SIL=3 in a certified glider. And yes it will get discovered easily by the FAA (no ADS-B Out '337 on file for that aircraft).

The ADS-B performance report is a useful report to check everything is OK, aircraft type is glider, ICAO ID is correct, N-number is correct etc. If you are doing a TABS install in any type of glider, or a 2020 Compliant install in an experimental glider there is no formal notice/verification action to the FAA required.

For a 2020 Compliant ADS-B Out install in a type certified glider (with a TN70+TT22 not a TN72 GPS Source, and not a TT21 transponder) your A&P IA needs to submit a '337 for the ADS-B Out install, based on the existing Peregrine/TT22 STC (available for free via Trig dealers). That certified aircraft install would normally include a formal verification flight (not required for any other installs mentioned above). A&P IA who want to navigate the details can start with FAA Policy N 8900.362. Yes it says it's expired, no it's not and is still in effect. This is what guides every FSDO with ADS-B Out installs. Glider owners should probably find a glider A&P IA who knows what they are doing here or willing to learn vs. trying to contact a FSDO themselves to ask questions.

https://www.faa.gov/regulations_poli...mentID/1029526