Expert Opinion
AIN Blog: The End of Avionics Certification for Light GA Airplanes?
The recent STC for installation of Dynon's D10A primary attitude indicator in older Piper and Cessna airplanes could lead to major changes.
Dynon's D10A primary attitude display has been STC'd for installation in some simple Cessna and Piper piston aircraft.
Dynon's D10A primary attitude display has been STC'd for installation in some simple Cessna and Piper piston aircraft.

The recent announcement that the FAA has approved a supplemental type certificate (STC) for installation of non-TSO’d avionics in basic single-engine airplanes is a significant development, and I expect this is going to be a hot topic at this week’s Aircraft Electronics Association International Convention & Trade Show, which opened today in Orlando, Fla.

To recap, the Experimental Aircraft Association (EAA) announced on April 6 that it developed an STC for installation of the Dynon EFIS-D10A electronic primary attitude indicator as a replacement for the attitude indicator on the Cessna 150, 152 and 172 and Piper PA-28 and PA-38 (Tomahawk). Flight-testing was accomplished in a Cessna 172M (a mid-1970s model). If the aircraft is already IFR certified, it remains so qualified after installation of the D10A.

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Matt Thurber
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