TagSea-Tac Airport(1001)

Local communities surrounding Seattle-Tacoma International Airport are demanding accountability from the Port of Seattle (POS) regarding its compliance with FAA Part 150 noise mitigation measures, some dating back to 1985. The document raises detailed questions about ten specific program elements — including voluntary flight rescheduling, engine run-up restrictions, noise abatement corridors, the Fly Quiet Program, and home sound insulation — asking for data on how consistently and effectively each measure has actually been implemented. Critics argue that despite decades of commitments, key noise reduction tools such as a Ground Run-Up Enclosure have been quietly dropped, while growing air traffic continues to harm residential neighborhoods and environmentally vulnerable populations.

This document details noise-related Airport Improvement Program (AIP) grants awarded to Seattle-Tacoma International Airport (Sea-Tac) from 2002 through 2015, covering purposes such as noise mitigation for residences and public buildings, land acquisition for noise compatibility, and noise compatibility plan studies. Grant amounts range from hundreds of thousands to over eleven million dollars, targeting properties within various Day-Night Level (DNL) noise contours of 65-69 and 70-74 DNL. An accompanying federal assistance application (SF-424) shows a 2015 grant totaling approximately $4.8 million for property acquisition, relocation, and sound insulation, signed by Port of Seattle's Managing Director of Aviation.

The Burien City Council wrote to Sea-Tac Airport CEO Lance Lyttle raising concerns about the operations of the Sea-Tac Stakeholder Advisory Round Table (StART), a cooperative forum between the airport and neighboring cities. The letter identifies four key issues: limited community input into meeting agendas, inaccurate or incomplete meeting minutes, a lack of formal consensus process when StART's name was used to promote a voluntary nighttime noise reduction program, and insufficient time given to the Council to review StART decisions before they are finalized. The Council requests clearer timelines, audio recordings of meetings, and greater opportunity for elected representatives to provide feedback before public commitments are made on behalf of the City of Burien.

A Burien Airport Committee member named Sharyn argues that Sea-Tac Airport's 2013 Part 150 noise study is dangerously outdated, as actual flight operations have been growing at roughly 9% per year — far outpacing the Port's own projections. Her analysis suggests Sea-Tac will reach its 2034 capacity forecast as early as 2020, meaning real noise impacts on surrounding communities like Seahurst are already well beyond what official noise maps show. She calls on the City of Burien to demand that the Port update its noise modeling immediately rather than waiting until after 2021.

The Burien City Council wrote to Port of Seattle leadership explaining why they suspended participation in the Sea-Tac Airport Round Table (StART), citing the Port's failure to respond to community concerns about health, noise, and quality-of-life impacts from growing flight operations. The council objected to the Port approving $10 million in design work for airport expansion under the Sustainable Airport Master Plan (SAMP) without adequate community consultation, and called for that decision to be reversed as a condition of re-engagement. A companion comparison chart shows how StART's governance rules on elected membership, meeting recordings, and inclusion of expert witnesses fall short of standards used by similar advisory bodies at airports in Charlotte, Los Angeles, and Chicago.

A letter from retired aviation professional Walt Bala urges the Port of Seattle to enforce limits on the use of reverse thrust by aircraft landing at Seattle-Tacoma International Airport between 10:00 PM and 7:00 AM, arguing this is both safe and already supported by FAA standards and the airport's own master record. Bala contends that aircraft are certified to land without reverse thrust, that brakes alone are sufficient to stop a plane under normal conditions, and that airlines may be using reverse thrust primarily to reduce brake wear at the expense of neighboring communities' peace and quiet. He calls on the Port to back up its existing noise abatement guidance with concrete action, including incentivizing quieter airline operations through gate allocation policies.

Burien resident and former Boeing Field Noise Officer Sharyn Parker testified in support of HB 1683, arguing that the Port of Seattle deliberately understated Sea-Tac Airport's growth projections to avoid alarming nearby communities, while simultaneously planning a multi-billion dollar expansion — leaving residents exposed to increasing noise and emissions without adequate mitigation. She points to the Port's 2013-2018 Part 150 Noise Study becoming outdated just two years after approval, and a four-year delay in implementing approved sound insulation measures, as evidence of mismanagement and misleading communications. Parker and coalition members are calling for nighttime cargo flights to be offloaded to a new regional airport, contending that Sea-Tac has exhausted both its physical footprint and airspace capacity.