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STC

FAA Approves More Aircraft For 100R Unleaded Avgas

By General Aviation News Staff · July 16, 2026 · 18 Comments

The FAA has expanded the Approved Model List for Swift Fuels’ 100R unleaded avgas, adding more than 1,200 piston engine and 1,600 airframe models.

New Prop for Cirrus SR20s Approved

By General Aviation News Staff · May 27, 2026 · Leave a Comment

MT-Propeller on Cirrus SR20

MT-Propeller has received STCs from the FAA, EASA, and TCAA Canada for the installation of its scimitar 3-blade propeller on Cirrus SR20s powered by Lycoming IO-390-C3B6 engines.

New Prop Approved for Piper FURY

By General Aviation News Staff · May 13, 2026 · Leave a Comment

Boost your Piper FURY’s performance with MT-Propeller’s new 7-blade “Silent 7.” Reduce takeoff distance by 10% and cut noise levels.

Air Plains Services purchases Petersen Aviation

By Ben Sclair · April 23, 2025 ·

Petersen Aviation has specialized in auto gas STCs since 1983. More than 39,000 aircraft use a Petersen Auto Fuel STC to burn ethanol-free auto gas in their aircraft.

New tailwheel STC’d for Cessna 170, Bird Dog

By General Aviation News Staff · December 11, 2024 ·

The twin-shock system replaces conventional leaf spring tailwheels. The coil-over spring assembly, equipped with oil shocks, absorbs energy on landing and reduces fuselage stress, according to company officials.

Garmin GI 275 certified for Robinson helicopters

By General Aviation News Staff · July 13, 2022 ·

The FAA awarded an STC for R22 and R44 installations in early July 2022.

Alpha Aviation earns STC for O-200A on Ercoupes C, CD, D, E, and G models

By General Aviation News Staff · February 3, 2020 ·

The STC allows the engine change without the loss of LSA eligibility.

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