(July 22, 2025, Pittsburgh, PA) QAI Aviation is proud to announce the FAA approval of its 5G filter Supplemental Type Certificate (STC) for the EC135 helicopter. This innovative solution is designed to enhance the performance of helicopters in 5G environments by minimizing signal interference and optimizing avionics functionality.
The STC complies with FAA AD 2023-11-07 regarding limitations due to 5G interference. AD 2023-11-07 was issued due to findings that radio altimeters may not function as intended when subjected to interference from wireless broadband operations within the 3.7–3.98 GHz frequency range (5G C-Band). These undetected anomalies in radio altimeter reading could compromise the ability to maintain safe flight and landing. The STC was designed to be a simple installation in the field and mitigate 5G interference for aircraft with the KRA-405B installed.
The STC is currently approved for the EC135 model, with expansion to additional leading helicopters platforms underway in the Approved Model List (AML). This marks the initial phase of a broader rollout, ensuring safety and compliance for a wider range of operators and aircraft.
For more information on QAI Aviation's 5G filter STC, its benefits for your operations, and upcoming model approvals, please contact Jeff Holt at [email protected] or call 412-469-8400.
ABOUT QAI:
QAI Aviation is an FAA-certified part 145 repair station. The company's capabilities include heavy maintenance, completions, avionics installations, upgrades, and repairs for fixed-wing and rotor-wing aircraft. QAI is located at the Allegheny County Airport (KAGC) in West Mifflin, PA., Rostraver Airport in Rostraver, PA., and has a sales office in White Oak, PA.
ABOUT SPECTRUM AEROMED:
Spectrum Aeromed is a global leader in designing and producing specialized air ambulance equipment and medical interiors as well as life support solutions for ground and marine applications. With a focus on quality, reliability, and customer service, Spectrum Aeromed provides comprehensive solutions that save lives and enhance the capabilities of medical air transport teams worldwide. The company's innovative products are utilized by a diverse clientele, including government and private entities, ensuring patients receive the care they need. For more information, please visit www.spectrum-aeromed.com.
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