Regulations & Safety
FAA Retires Century-Old FSS Radio Networks for Digital Shift
The FAA phases out legacy aviation radio systems as digital tools replace 99% of voice requests, with Alaska exempted due to operational demands.

The End of an Era: FAA’s Plan to Retire FSS Radio Networks
For over a century, Flight Service Stations (FSS) have served as aviation’s communication backbone, providing weather updates, flight planning assistance, and emergency support. From their origins as airmail radio stations in 1920 to their peak during World War II, these networks once handled 22,000 daily requests. Today, the FAA proposes shutting down this legacy system as radio calls have plummeted 99% since the 1980s – a move signaling aviation’s irreversible shift to digital solutions.
This transition reflects broader industry trends where only 300 daily radio requests now trickle through a network that once required 3,000 specialists. As pilots increasingly rely on mobile apps and internet briefings, maintaining 936 radio frequencies across three U.S. territories appears increasingly impractical. However, the plan raises questions about emergency preparedness and equitable access for pilots without modern technology.
From Vital Network to Obsolete Infrastructure
The FSS system’s decline mirrors aviation’s technological evolution. During the 1940s, 4,000 personnel manned stations critical for wartime operations. By 1960, the newly formed FAA standardized these into 350 Flight Service Stations. The system peaked during the 1980s jet age, when controllers used teletype machines and “Q” code shorthand to manage 22 million annual pilot interactions.
Three key factors drove the decline: the 1995 introduction of DUATS computer briefings, smartphone weather apps post-2010, and automated flight planning tools. By 2025, 98% of weather briefings are projected to occur digitally through platforms like 1800wxbrief.com. “We’ve seen voice requests drop from 800/hour to less than 13,” notes an FAA report, highlighting the network’s underutilization.
“From over 350 stations with 3,000 employees in 1985 to just two facilities with 200 specialists today – the math no longer justifies the $14 million annual maintenance cost.” – FAA Notice of Intent
Modernization Challenges and Solutions
The FAA’s VoIP transition plan faces technical and operational hurdles. While 93% of pilots now carry internet-connected devices, remote areas like Montana’s Glacier Park still rely on radio for mountain weather updates. The agency proposes shifting emergency monitoring to ATC centers, but some question response times without dedicated FSS operators.
Alaska’s exemption underscores regional disparities. With 80% of U.S. air taxi operations and limited cellular coverage, the state’s 54 FSS frequencies remain vital. Elsewhere, contract providers like Leidos will manage the transition through web portals and automated phone systems. However, 17% of GA pilots over 65 still prefer voice communication, suggesting phased training will be crucial.
Future of Aviation Communication
The FSS phaseout accelerates aviation’s digital transformation but requires careful implementation. While reducing redundant systems could save $200 million through 2030, the FAA must ensure backup protocols for cyber outages. Recent NOTAM system failures highlight the risks of over-reliance on digital infrastructure.
Emerging technologies like satellite-based ADS-B and AI weather prediction could fill service gaps. However, as the 2025 NBAA convention will discuss, balancing innovation with accessibility remains key. The industry watches closely – this transition may blueprint how agencies modernize other legacy systems like VOR navigation networks.
FAQ
Why is Alaska exempt from the FSS radio shutdown?
Alaska retains FSS due to unique operational needs – limited cellular coverage, extreme weather, and high air taxi traffic require reliable voice communication.
What replaces radio-based flight services?
Pilots now use 1800wxbrief.com for digital briefings, mobile apps for real-time weather, and automated phone systems. Emergency calls route through ATC frequencies.
How will this affect aviation safety?
The FAA claims enhanced safety through more accurate digital tools, though some pilots worry about losing human expertise during complex weather scenarios.
Sources: AVweb, FAA History, ATCA History
Photo Credit: flyinginfairbanks
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Regulations & Safety
FAA Activates 100th Surface Awareness Initiative System
The FAA reaches a milestone in its 220-airport SAI deployment, using ADS-B data to improve runway safety and controller awareness.

The Federal Aviation Administration (FAA) has activated its 100th Surface Awareness Initiative (SAI) system, marking a halfway point in a nationwide deployment aimed at reducing runway incursions and improving air traffic controller situational awareness. U.S. Transportation Secretary Sean P. Duffy and FAA Administrator Bryan Bedford announced the milestone on September 2, 2026.
In a press release issued by the agency, officials confirmed that the SAI technology is now operational at 100 air traffic control towers. The system leverages Automatic Dependent Surveillance-Broadcast (ADS-B) data to provide controllers with real-time tracking of aircraft and ground vehicles. This capability is particularly critical during periods of low visibility or when portions of the airfield are outside the direct line of sight from the control tower.
Accelerated rollout of surface safety technology
The FAA plans to install the SAI system at a total of 220 airports that previously lacked surface surveillance capabilities. According to the agency, an additional 44 facilities are scheduled to receive the technology by the end of 2026. Recent installations include Ann Arbor Municipal Airport (ARB), Billings-Logan International Airport (BIL), Gulfport-Biloxi International Airport (GPT), Greenville-Spartanburg International Airport (GSP), and Corpus Christi International Airport (CRP).
The accelerated deployment is supported by a $12.5 billion allocation for air traffic control modernization under the Working Families Tax Cut Act.
“We have doubled our deployment speed thanks to Republicans in Congress who delivered funding through the Working Families Tax Cut Act,” Duffy stated. “We’re going to continue fast-tracking our deployment so that all 220 FAA towers that did not have surface surveillance capabilities can now have a new tool at their disposal for controllers.”
Broader air traffic control modernization
The SAI milestone is part of a wider initiative by the U.S. Department of Transportation (DOT) and the FAA to upgrade aging aviation infrastructure. FAA Administrator Bryan Bedford emphasized the operational necessity of the new systems.
“SAI is vital for controllers. It gives them the big picture of the airport’s surface right at their fingertips,” Bedford said. “For our controllers to work at their best, they need the technology to match their expertise.”
The September 2 announcement follows a series of related infrastructure investments. In late August 2026, the FAA highlighted a $27.3 million project to modernize the air traffic control system at Norfolk International Airport (ORF). Duffy and Bedford also recently inaugurated a $40 million Rohde & Schwarz USA manufacturing facility in Frederick, Maryland. The plant will produce digital Voice over IP switches for the national airspace system.
The agency has also continued deploying Surface Movement Radar Model 4 (SMR-4) systems, with recent installations completed at Ronald Reagan Washington National Airport (DCA) and Newark Liberty International Airport (EWR).
AirPro News analysis
The rapid deployment of the Surface Awareness Initiative represents a pragmatic approach to a persistent safety challenge. Historically, advanced surface surveillance systems were limited to the nation’s largest and busiest hub airports due to high installation and maintenance costs. By utilizing existing ADS-B out data, which is already mandated for most aircraft operating in controlled airspace, the FAA can provide smaller and mid-sized regional airports with a digital picture of the airfield at a fraction of the cost. We view this 100-tower milestone as a critical step in closing the technology gap between major international hubs and regional facilities, ultimately creating a more uniform safety standard across the national airspace system.
Sources: Federal Aviation Administration
Photo Credit: Federal Aviation Administration
Regulations & Safety
NASA SOAR Project Develops ATC Tools for Metroplex Airspace
NASA’s SOAR initiative develops decision-support tools for air traffic controllers managing complex metroplex arrival and departure flows.

This is original reporting and analysis by AirPro News.
The National Aeronautics and Space Administration (NASA) has detailed its ongoing SOAR research initiative, aimed at equipping air traffic controllers with advanced decision-support tools to manage complex arrival and departure flows in shared airspace.
Updated on September 14, 2026, by NASA’s Airspace Operations Laboratory (AOL), the project specifically targets “metroplex” environments where multiple Airports create highly interdependent traffic patterns. The research seeks to alleviate terminal area congestion by dynamically utilizing spatial and temporal separation to improve operational efficiency and reduce delays.
Addressing metroplex airspace congestion
In high-density metroplex areas, terminal flows frequently compete for the same airspace resources. NASA’s research addresses these bottlenecks by developing systems that allow controllers to identify and utilize gaps in arrival streams for departing aircraft without compromising safety margins.
According to the agency’s project overview, the operational concept relies on advanced scheduling and spacing tools. NASA stated that the goal is to “identify and display gaps in an arrival flow that could be used by aircraft on an optimized departure route that crosses the arrival flow.”
SOAR decision-support tools and integration
The SOAR initiative introduces several specific tools designed to integrate with existing air traffic management systems, including the Traffic Management Advisor (TMA). The proposed controller toolset includes conflict probes, ghosting positions, slot markers, and trajectory resolution and scheduling functions.
A key component of the interface is the “tie-box” static tool. This feature uses a 4 miles distance threshold to predict whether a relative aircraft will breach separation minimums with a referenced aircraft when crossing a shared waypoint. By Automation these spatial calculations, the system provides controllers with immediate visual cues regarding potential conflicts.
The agency noted that mathematical modeling supports this dynamic approach to traffic management. “Optimization problems indicate that being able to dynamically use either or both spatial or temporal separation results in the most efficient operations,” NASA reported.
AirPro News analysis
As the Joint Planning and Development Office (JPDO) and the Federal Aviation Administration (FAA) continue to modernize the National Airspace System, tools like those developed under the SOAR project will be critical for scaling operations in constrained metroplexes like New York or Southern California. We view the transition of these concepts from the Airspace Operations Laboratory to active Terminal Radar Approach Control (TRACON) facilities as a necessary step to handle projected traffic growth. Automating the calculation of spatial and temporal gaps reduces the cognitive load on controllers, allowing for tighter, safer integration of crossing departure and arrival flows in saturated airspace.
Sources: National Aeronautics and Space Administration (NASA)
Photo Credit: NASA
Regulations & Safety
FAA Awards $1.1 Billion in Airport Improvement Grants
FAA distributes $1.1B in AIP grants across 46 states, funding runway upgrades and VMAT surface safety technology.

The Federal Aviation Administration (FAA) announced $1.1 billion in Airport Improvement Program (AIP) grants on September 14, 2026, targeting critical infrastructure upgrades and a major expansion of surface safety technology across 46 states and three U.S. territories.
In a press release issued by the agency, U.S. Transportation Secretary Sean P. Duffy and FAA Administrator Bryan Bedford detailed the distribution of 280 grants. The funding addresses traditional infrastructure needs like runway reconstruction and terminal expansions while heavily prioritizing the deployment of Vehicle Movement Area Transmitters (VMATs) to mitigate runway incursion risks.
Advancing Surface Safety with VMAT Technology
A central component of the funding package is a $10.9 million allocation designed to equip 3,000 airport-owned vehicles with VMATs across 61 airports. VMATs utilize Automatic Dependent Surveillance-Broadcast (ADS-B) technology to transmit a vehicle’s identity and precise location to air traffic controllers. This provides real-time tracking of ground vehicles operating on runways and taxiways.
The investment builds upon the FAA Surface Awareness Initiative launched in May 2026. During that initial phase, the agency dedicated $16.5 million to equip its own vehicle fleet with VMATs and encouraged airport operators to utilize federal grants to upgrade their respective fleets.
“These grants will allow airports to deploy VMATs, that provide our air traffic controllers with greater situational awareness of aircraft and vehicles moving on the airport surface. This is about giving our controllers the tools and technology they need to safely manage an increasingly complex National Airspace System,” Bedford stated in the release.
Major Infrastructure and Terminal Upgrades
Beyond surface safety technology, the AIP grants direct substantial capital toward heavy infrastructure and passenger facility improvements. Hartsfield-Jackson Atlanta International Airport (ATL) received the largest single runway-focused grant highlighted in the announcement, securing $30.7 million for runway reconstruction.
Terminal and facility expansions also received significant backing. Shreveport Regional Airport (SHV) in Louisiana was awarded $18.9 million for terminal expansion, while Mankato Regional Airport (MKT) in Minnesota secured $11.5 million to construct a new contract air traffic control tower. McAllen International Airport (MFE) in Texas received $2 million for a terminal expansion project that includes new baggage claim areas, restrooms, nursing stations, and ticketing counters.
The FAA also allocated $43 million across 12 airports specifically for noise mitigation projects, addressing community impact concerns surrounding airport operations.
“To usher in the Golden Age of Travel, we are upgrading airport infrastructure, enhancing safety on our runways, and expanding family-friendly features in terminals across the country. This over billion dollar investment includes critical safety tools like vehicle transmitters to ensure our air traffic controllers have the best visibility possible,” Duffy said.
AirPro News analysis
The aggressive push for VMAT funding reflects a targeted regulatory response to recent high-profile runway incursions. By equipping 3,000 airport-owned vehicles with ADS-B out capabilities, the FAA is closing a critical visibility gap for air traffic controllers during low-visibility and high-tempo operations. We view this $1.1 billion disbursement, which follows $1.09 billion in combined Airport Infrastructure Grants and AIP funding distributed in August and early September 2026, as a clear indicator that the U.S. Department of Transportation (USDOT) is prioritizing immediate, technology-driven safety enhancements alongside traditional concrete-and-steel infrastructure projects. The rapid rollout of VMAT funding suggests the agency is moving quickly to mandate or heavily incentivize surface tracking technology across all commercial service airports.
Sources: Federal Aviation Administration
Photo Credit: Federal Aviation Administration
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