TagFAA(684)

In April 2018, the FAA issued a Categorical Exclusion allowing Seattle-Tacoma International Airport's control tower (SEA ATCT) to automatically direct southbound turboprop aircraft to turn westward to a 250-degree heading within one nautical mile of the runway end, rather than waiting for the Seattle TRACON radar facility to issue the turn after takeoff. This procedural change, active between 6 am and 10 pm during north-flow operations, was designed to improve safety and efficiency by reducing delays in aircraft transitioning to their filed flight routes. The FAA determined the action would not significantly increase noise over sensitive areas and therefore required no further environmental review beyond this Categorical Exclusion.

This April 2018 Federal Aviation Administration document describes a proposed procedural change at Seattle-Tacoma International Airport to automatically direct southbound turboprop aircraft to a 250-degree westerly heading during north-flow operations between 6 am and 10 pm, rather than requiring air traffic controllers to manually coordinate each turn. The nighttime hours of 10 pm to 6 am were excluded from the automatic turn procedure in response to community concerns from the City of Burien and other residents about flight noise over sensitive areas. The document evaluates this preferred alternative alongside other options, including changes to heading angles and missed approach procedures, which were ultimately eliminated due to safety and airspace separation requirements.

FAA categorical exclusion document for updating a Letter of Agreement between Seattle-Tacoma International Airport’s Air Traffic Control Tower and Seattle Terminal Radar Approach Control to automate a 250° westerly turn for southbound turboprops during north-flow operations. The automated turn would be suspended between 10 pm and 6 am in response to comments from the City

A presentation by David Goebel addressing the noise impact of the FAA’s NextGen program on Vashon Island. The document covers airport flow fundamentals, conventional RADAR vs NextGen RNAV approaches, and action items for addressing the noise issue.

The FAA's Continuous Lower Energy, Emissions and Noise (CLEEN) program is a public-private partnership aimed at reducing aircraft fuel burn, emissions, and noise through new engine and aircraft technologies and alternative jet fuels. Running in three phases from 2010 through 2025, the program sets increasingly ambitious targets, including up to a 75% reduction in NOx emissions and a 40% reduction in fuel burn by 2026. These advancements are relevant to communities near busy airports like Sea-Tac, as the program's noise reduction goals include a 25 dB cumulative reduction relative to Stage 5 standards.

This FAA information sheet explains two main ways airports and communities can work together to address aircraft noise: the formal Part 150 Noise Compatibility Program, which follows federal regulations and can unlock federal funding for solutions like sound insulation, and Community Roundtables, which are voluntary ongoing forums where neighbors, airlines, and airport representatives discuss a broad range of noise and airport concerns. While Part 150 studies are structured, time-limited processes that result in an approved Noise Compatibility Plan, roundtables operate continuously under their own bylaws without a defined end date. The FAA recommends that airports consider using both approaches together for the most effective community engagement.

This FAA information sheet explains two main ways airports and communities can address aircraft noise concerns: the formal Part 150 Noise Compatibility Program, which follows federal regulations and can unlock funding for solutions like sound insulation, and Community Roundtables, which are voluntary ongoing forums for broader dialogue between airports, airlines, the FAA, and neighboring communities. The document compares the two approaches across key factors such as goals, FAA involvement, geographic scope, funding, and expected outcomes, noting that both methods can work together effectively. Airports like Sea-Tac may use one or both strategies to reduce noise impacts and keep community members informed and engaged.

In January 2018, Des Moines resident and filmmaker Steve Edmiston addressed the Port of Seattle Commission, arguing that a prior FAA briefing on NextGen flight procedures omitted critical information about health harms from aircraft noise, nationwide community opposition, lawsuits against the FAA, and related legislation. Edmiston announced a project to deliver the full, fact-based briefing the Commission originally requested, presenting his information in two-minute public comment segments over an estimated 10 months. His goal was to push the Port to move beyond what he called 'selective environmentalism' and make better-informed decisions about the human and environmental costs of expanded flight operations at SeaTac Airport.

The Quiet Skies Coalition is a community group opposing increased aircraft noise over the Greater Burien area near Seattle-Tacoma (Sea-Tac) Airport. Since July 2016, the FAA began directing westbound flights to turn immediately after takeoff over residential neighborhoods, a change driven by Sea-Tac nearing its maximum capacity with takeoffs spaced roughly two minutes apart. The coalition urges residents to contact the FAA and Port of Seattle to object, and welcomes financial contributions to support their advocacy efforts.

An analysis of FAA and industry data argues that the 'Greener Skies' flight procedure changes at Seattle-Tacoma International Airport provided negligible environmental benefits, saving only about 1.6 million gallons of fuel annually — less than one-third of one percent of the airport's total fuel consumption. Meanwhile, actual fuel use at Sea-Tac grew by hundreds of millions of gallons per year due to increased flight operations, completely overshadowing the claimed savings. The article contends that the program was essentially a public relations campaign that shifted noise burdens onto surrounding neighborhoods without delivering meaningful environmental improvements.