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STNI
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STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagFAA(211)

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  • Dnl Average Sound Level

    Day-Night Average Sound Level Calculation

    Chart depicting Day-Night Level (DNL) methodology with hourly LEQ values and nighttime penalty weighting, showing how individual aircraft events accumulate into 24-hour average noise exposure. Illustrates the regulatory metric used to assess airport noise impacts on communities.
    TagsDNL65, FAA, Noise Exposure Update
  • FAA SPL V2 HR Trim

    SEL Sound Exposure Level and Energy Metrics

    Technical diagram illustrating Sound Exposure Level (SEL), maximum sound level (Lmax), and sound energy distribution over time with 10dB reference intervals. Explains measurement methodology used to quantify instantaneous noise events from aircraft operations.
    TagsFAA, Noise 101, Scientific Measurement
  • FAA 2026 Recruitment Its Not a Game Its a Career
    2026-04-13

    It’s not a Game. It’s a Career.

    Level Up: April 17th Historically, the FAA’s approach to recruiting and retaining Air Traffic Controllers has been to say the least, a slightly schizophrenic. On the one hand, the physical and mental requirements are more challenging than most government or military positions. By government standards, the compensation, and particularly the retirement benefits are very good.
    CategoriesChange The Culture, News Stories TagsATC, FAA
  • FAA 2026 Recruitment Its Not a Game Its a Career
    2026-04-11

    To Fill Air Traffic Controller Shortage, F.A.A. Turns to Gamers

    The air traffic control tower at Ronald Reagan National Airport.Credit…Kent Nishimura for The New York Times. Avid players of video games have emerged as a target demographic for recruiters at a range of federal agencies, including the military and the Department of Homeland Security. By Karoun Demirjian Reporting from Washington April 10, 2026 See more of
    CategoriesFrom The Web TagsATC, Commercial Aviation, FAA, New York Times
  • 2026-03-23

    2 pilots dead after Air Canada plane collides with truck at LaGuardia Airport

    Two dead in LaGuardia Airport collision March 23, 2026, 1:13 AM EDT / Updated March 23, 2026, 7:42 PM EDT By Jonathan Dienst, Jay Blackman, Josh Cradduck, Tom Costello and Corky Siemaszko New York’s LaGuardia Airport reopened Monday, 14 hours after two pilots were killed and dozens of passengers were injured when an arriving plane collided with a
    CategoriesFrom The Web TagsAir Traffic Control, Commercial Aviation, FAA, FAA Occurrences, LaGuardia, NBC News, NTSB
  • 2026-03-19

    Certified LIST of AGENCY RECORD March 19, 2026

    Administrative record index filing in federal court appeals challenging the FAA’s September 24, 2025 Finding of No Significant Impact/Record of Decision for the Sustainable Airport Master Plan Near-Term Projects at Seattle-Tacoma International Airport. The document provides notice that the administrative record is available via Box.com link to counsel.
    TagsCity of Burien, FAA, NEPA, SAMP, Vashon Island Fair Skies
  • 11Elpaso Drone Disconnect Tmzh Superjumbo
    2026-02-11

    Officials Claim Drone Incursion Led to Shutdown of El Paso Airport

    The secretary of transportation said the military had neutralized a drug cartel drone. Two officials said testing of counter-drone technology prompted the closure. The F.A.A. initially said it would last 10 days. The Federal Aviation Administration lifted an order to ground all flights at El Paso International Airport on Wednesday. The order was initially issued
    CategoriesFrom The Web TagsFAA, New York Times
  • 2026-02-05

    Motion to consolidate petitions denied

    Court order denying motions for separate opening briefs and oversized consolidated opening brief in two consolidated Federal Aviation Administration cases. Sets briefing schedule with consolidated opening brief due March 30, 2026.
    TagsCity of Burien, FAA, Ninth Circuit Court of Appeals, Port Of Seattle, Vashon Island Fair Skies
  • 2026-02-05

    Motion to consolidate petitions denied

    Court order from the Ninth Circuit Court of Appeals addressing two consolidated cases involving Vashon Island Fair Skies and City of Burien challenging the Federal Aviation Administration. The order denies motions for separate opening briefs and oversized briefs, while establishing deadlines for consolidated briefing.
    TagsCity of Burien, FAA, Ninth Circuit Court of Appeals, Port Of Seattle, Vashon Island Fair Skies
  • 2026-01-27

    Trump’s Transportation Secretary Sean P. Duffy & FAA Administrator Bryan Bedford Unveil New Agency Structure to Enhance Safety, Embrace Innovation, & Increase Transparency

    Tuesday, January 27, 2026 WASHINGTON, D.C. – U.S. Transportation Secretary Sean P. Duffy and Federal Aviation Administration (FAA) Administrator Bryan Bedford today announced their plan to implement a long overdue overhaul of the FAA’s organizational structure. The comprehensive re-organization – the largest in the agency’s history – includes the creation of a new safety oversight office.
    CategoriesFrom The Web TagsFAA, Press Release

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Upcoming Events

  • Port of Seattle Commission Meeting – Resolution No. 3848
    Add to CalendarMTuesday Apr 28: 12:00am
    Port of Seattle

    Agenda Item 10b Resolution No. 3848: Port of Seattle Participation in City of Bellevue Tax Increment Area Approval of the Port’s participation in the city of Bellevue’s tax increment area, as authorized under RCW 39.114.020. Key Points: Authorization for City of Bellevue to enact increment area up to $500,000,000 in combined assessed valuation if connected

    [...]
  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    - **SAMP Environmental Review**: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects
    - **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives
    - **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:**
    Public comment period opened for stakeholder input on airport development plans.

    [...]

[See all...]


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Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
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Read This!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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