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Old 08-13-2019, 08:01 AM
airguy's Avatar
airguy airguy is offline
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 4,952
Default Problems with Freeflight ADSB?

FAA is seeking more data...
Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2020 dues paid
N16GN flying 600 hrs and counting! IO360, SDS, WWRV200, Dynon glass, 430W
Built an off-plan KC9A with too much fuel and too much HP. Should drop dead any minute now.
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Old 08-13-2019, 09:25 AM
Walt's Avatar
Walt Walt is offline
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,501

From FreeFlight:

Re: FAA Airworthiness Concern Sheet, dated July 24, 2019

Dear Valued Partners and Customers,

FreeFlight Systems is aware of a letter from the Federal Aviation Administration titled, "Airworthiness Concern" dated July 24, 2019. This letter pertains to the FreeFlight Systems FDL-978-XVR.

We are not aware of any technical issues with these systems. FreeFlight Systems is working with the FAA to understand the basis of their expressed concern.

Tim Taylor

President and CEO, FreeFlight Systems
Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website:, Email:, Cell: 972-746-5154
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Old 12-15-2019, 07:56 PM
thinkn9a thinkn9a is offline
Join Date: Nov 2007
Location: Mississippi
Posts: 275
Default Any update on FAA note on failure/degradation ?

trying to decide if I should put Freeflight on the “to be considered list” for my implementation of ADSB

Doesn’t look like a lot of folks have these units, but those that did reported good support and performance,....

The note from FAA leaves a question hanging
Wallace & Marietta Goodloe
9A -QB
Phase 2 has started!
Thanksgiving time, is dues time for us
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Old 12-15-2019, 11:32 PM
jliltd jliltd is online now
Join Date: Sep 2013
Location: Rancho San Lorenzo
Posts: 734

I have two Freeflight Rangr Lites (out with internal WAAS GPS). Part number is FDL-978-TX/LITE so I will guess it's okay since the FAA letter states a different part number. Freeflight is very robust hardware and the company kind of helped set the standard for ADS-B having been involved in the Capstone program in Alaska which was the dress rehearsal for the current ADS-B mandate. My units are paired with GTX 327 mode C digital transponders with anonymous mode switches. Both in type certified aircraft.

I would estimate the install is about twice the work as a GDL 82 with the Freeflight requiring more wiring and a dedicated ADS-B antenna on the belly. I used TED ball and stick UAT antennas.

Never had a lick of trouble. Freeflight is easy to call with good support.


Last edited by jliltd : 12-16-2019 at 01:02 AM.
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Old 12-16-2019, 11:39 AM
RV8JD's Avatar
RV8JD RV8JD is offline
Join Date: Jan 2005
Posts: 750

Here is a link to the FreeFlight ADS-B OUT units approved by the FAA as of October 25, 2019:
Carl N.
Arlington, WA (KAWO)
RV-8, 710 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflügel Standard Libelle 201B - Sold
Rolladen-Schneider LS1-f - No longer owned
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