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Absolute AoA Heated Probe System Earns FAA Approval

By General Aviation News Staff · July 24, 2026 · Leave a Comment

Holy Micro!, a Syracuse, N.Y.-based avionics manufacturer, has received Non-Required Safety Enhancing Equipment (NORSEE) Production Approval from the FAA for its Absolute AoA Heated Probe System.

The approval authorizes the company to manufacture the Absolute AoA Heated Probe System under 14 CFR 21.8(d) in accordance with FAA Policy PS-AIR-21.8-1602. The system is authorized as a Supplementary Angle of Attack and Stall Warning System for eligible aircraft installations.

“We have incorporated a heated probe into our Absolute AoA system to provide an FAA-approved configuration for operators who require probe heating in applicable operating conditions,” said Francis J. Kunnumpurath, Owner of Holy Micro! LLC. “This approval enables us to offer the heated probe configuration as part of our Absolute AoA product line while continuing our focus on developing practical safety-enhancing equipment for the general aviation community.”

Installation must be accomplished as either a minor alteration or a major alteration substantiated by FAA-approved installation data, such as a field approval, follow-on Supplemental Type Certificate (STC), or other approved installation data, according to company officials.

Because the heated probe assembly consumes appreciable electrical power, some aircraft may not have sufficient reserve electrical capacity to support the additional load, officials said, adding installers are advised to verify the aircraft’s electrical capacity and adhere to the electrical load testing procedures outlined in the installation manual.

As with all NORSEE equipment, the Absolute AoA Heated Probe System is intended to provide supplementary angle of attack and stall warning information and does not replace required aircraft equipment.

For more information: Holymicro.com

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