FAA Advisory Circular 90-106A for guidance and compliance with LOA requirements.
EFS HUD or EFVS
Operational Authorization & Guidance
Embark on a smoother aviation journey with HD&A, where we specialize in facilitating the acquisition of operational authorization for Enhanced Vision Systems with Heads-Up Display (EFS HUD). These systems can be used to descend below DH or MDA on certain straight-in approaches. Following the directives of ICAO Annex 6 Part 2 and FAA, we provide comprehensive guidance and support for obtaining the necessary Letter of Authorization (LOA). Keep in mind that the FAA uses the term Enhance Flight Vision Systems (EFVS).
Find out how we can help you obtain EFVS operational authorization and guidance from the FAA.

Benefits of EFVS Installation
At HD&A, we know the benefits this technology offers to your flight crew during approaches. Factory-installed or aftermarket systems provide enhanced situational awareness, elevating your operations to new levels. Furthermore, under specified conditions, there is a potential for operational credit, allowing for lower descent minimums on qualified approaches.
Know the Key Elements
Before claiming operational credit or submitting an application for an LOA, operators should review the Aircraft Flight Manual (AFM) and Supplements to ensure compliance. The key elements to review include:
Connect with Us
Get in touch with us for an LOA project quote or a complementary assessment of new or pre-owned aircraft under consideration, including avionics capability and crew training pre-application. Let HD&A simplify the process and save you time and money.


