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EASA Approves STC for Hartzell Alternator Upgrades

The supplemental type certificate covers a number of airplanes along with several models of Robinson and Sikorsky helicopters.

Typical Lycoming engine installation of Plane-Power ALT-FLX alternator. [Courtesy: Hartzell Aviation]
Gemini Sparkle

Key Takeaways:

  • The European Union Aviation Safety Agency (EASA) has granted Hartzell Engine Tech a supplemental type certificate (STC) for its Plane-Power ALT-FLX alternator upgrades.
  • This EASA approval expands the availability of the upgrade, which was previously approved by the FAA in the U.S., to a wide variety of piston-powered airplanes and helicopters.
  • The Plane-Power ALT-FLX alternators provide significant power output, offering up to 100 amps in 12-volt systems and 150 amps in 24-volt systems, with comparable weight to existing units.
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The European Union Aviation Safety Agency (EASA) has granted Hartzell Engine Tech supplemental type certificate (STC) approval for Plane-Power ALT-FLX alternator upgrades in a wide variety of piston-powered airplanes and helicopters.

The STC was previously approved in the U.S. by the FAA.

Meg Godlewski

Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.

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