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backstop to compliance or enforcement issues. An issue identified and reported immediately takes a minimum of one day to place the aircraft on the NSAL. Enhanced validation (EV) shows the most promise operationally as it is a real time response to invalid ADS-B targets. The latest update to EV already deployed within 15nm around a Terminal Radar has shown positive results. Additional EV techniques are being analyzed, including expanding the range beyond 15nm and further increasing the responsiveness. SBS Engineering is working diligently with Harris to incorporate these changes with additional EV parameters in 2018. With 2020 approaching rapidly, these changes are needed sooner than later to limit the sporadic effects of non-compliant avionics. SBS Article 114 work group discussions resulted in all B787 aircraft being placed on the NSAL. These aircraft had a latent avionics issue that causes false position information to be displayed to the controller. This alarmed several facilities and caused both SCT and NCT to demote ADS-B in their sort cell priorities. Boeing released a Service Bulletin to address the problem. Most of the B787 operators in the U.S. have confirmed completing the Service Bulletin allowing them to be removed from the NSAL. Other B787 operators are being removed from the NSAL as verification of the Service Bulletin is received by Flight Standards. ASDE-X Tech Refresh: The agency will be upgrading RU communication lines at eight airports to ethernet. This will allow for increased bandwidth due to traffic level increases. This has been in the works for some time and should start next year. DTW, LGA, PHL, PHX ORD, LAX, ATL, and SLC are the eight sites currently running on RF modems and/or copper comm lines that are currently near max capacity. Tech refresh training continues amongst ASDE-X sites and the latest build should be fully deployed by the end of this fiscal year. After completion, we will start deployment on the next set of system enhancements. ASSC: • CVG IOC achieved on April 5th. • PIT Cadre training will take place the week of July 30th. • MCI field familiarization will start in late August. • MSY will be next in line after MCI and PIT are complete. MEARTS Fusion: 3nm Fusion in MEARTS is a complex undertaking requiring multiple Tower, Approach, and En route sectors to come online with Fusion at the same time. The lessons learned in this undertaking will help the effort with future MEARTS and ERAM sites. ZAN has been on Fusion since August 2015. HCF has been on Fusion since Aug. 1, 2017. ZUA transitioned to Fusion on March 26, 2018. A Fusion kickoff meeting, Air Traffic Cadre, and some limited Fusion observations took place the first week of April at San Juan CERAP (ZSU). Analysis of the observations resulted in a need for automation changes. The next planned event for ZSU is an

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