90-106A - Enhanced Flight Vision Systems - Change 1
- Date Issued
- March 02, 2017
- Responsible Office
This advisory circular (AC) provides information about using an enhanced flight vision system (EFVS) in lieu of natural vision while conducting instrument approach operations. It addresses dispatching and releasing aircraft for EFVS operations and explains the requirements for conducting EFVS operations to 100 feet above the touchdown zone elevation (TDZE) and EFVS operations to touchdown and rollout. This AC also explains how to obtain an operations specification (OpSpec), management specification (MSpec), or letter of authorization (LOA) to conduct those EFVS operations that require an approval.
We have made every attempt to write EFVS regulations that are performance based and not limited to a specific sensor technology. The regulations accommodate future growth in real-time sensor technologies used in most EFVSs and maximize the benefits of rapidly evolving instrument approach procedures (IAP) and advanced flight deck technology to increase safety and access during low-visibility operations.