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STNI

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.

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  • 2025-03-26

    Commercial Aircraft On Approach Over Water Tower Near Airport

    A wide-body commercial jet aircraft, landing gear deployed and approaching from behind, flies low over a spherical pale blue water tower surrounded by evergreen trees. The aircraft appears to have red tail markings, suggesting a livery such as Air Canada or a similar carrier, but no text or logos are legible at this resolution.
    Tagsaircraft, Des Moines, Sea-Tac AirportFolderDes Moines
  • Lance Lyttle

    An unidentified man in a navy blazer speaks and applauds at a podium bearing the Seattle-Tacoma International Airport (SEA) logo. The event backdrop prominently displays the SEA branding, suggesting an official airport announcement or ceremony.
    TagsLance Lyttle, Port Of Seattle, Sea-Tac AirportFolderCommission
  • 2025-03-19

    SEA Airport Managing Director Lyttle to Depart in April for CEO of Greater Orlando Aviation Authority

    Seattle-Tacoma International Airport Aviation Managing Director Lance Lyttle has been announced as the next CEO of Greater Orlando Aviation Authority.  “Lance’s commitment to excellence and his ambitious vision changed the airport experience at SEA,” said Port of Seattle Executive Director Stephen Metruck. “SEA has now reached the prestigious 4-Star Airport level from the Skytrax World Airport
    CategoriesFrom The Web TagsPort Of Seattle, Sea-Tac Airport
  • Lance Lyttle, Sea-Tac Airport Managing Director

    A man in a plaid shirt speaks animatedly during what appears to be an interview or meeting, seated at a table inside an airport terminal. Through the window behind him, Delta Air Lines aircraft are visible on the tarmac, consistent with a major hub airport environment.
    TagsLance Lyttle, Sea-Tac AirportFolderCommission
  • 2025-03-19

    Sea-Tac Airport managing director to leave for Orlando

    By Nick Pasion – Reporter, Puget Sound Business Journal Mar 19, 2025 Seattle-Tacoma International Airport managing director Lance Lyttle was named the CEO of the Greater Orlando Aviation Authority on Wednesday. Lyttle is now in contract negotiations with the Orlando, Florida, authority but is expected to begin the role in mid-April. Port of Seattle Commission President
    CategoriesFrom The Web, News Stories TagsPuget Sound Business Journal, Sea-Tac Airport
  • 2025-03-18

    Invoice #1209 – Vianair Inc. Alexandria consulting January-February 2025

    This document is an invoice and supporting monthly status report from Vianair Inc. to the City of Alexandria for aviation consulting services covering January–February 2025, totaling $9,750. The work included flight procedure reviews, public meeting presentations, steering committee participation, and software analysis related to the Alexandria (SoA) project. The invoice was recommended for approval by representatives from Fairfax County and Prince George's County and formally approved by the City of Alexandria on April 15, 2025.
    Tagscommunity engagement, Flight Tracks, Noise Abatement Procedures, Sea-Tac Airport, VianairFolderVianair
  • 2025-02-26

    StART SIRRPP Update — Assessment Key Findings — Slide 16 (February 26, 2025)

    Presentation slide titled 'Assessment Key Findings' summarizing results of a sound insulation assessment: 99% of products installed prior to 2014 are past their expected useful life, lack of replacement parts limits resident maintenance, and all tested homes (including five Pre-1993) measured under 45dB DNL interior, with sound insulation packages deemed acoustically effective despite operational and appearance concerns.
    TagsSea-Tac Airport, SIRRPP, Sound Insulation, StARTFolderSIRRPP 20250226
  • 2025-02-26

    StART SIRRPP Update: Interior DNL Eligibility Threshold and Acoustic Testing Results — Slide 14 (February 26, 2025)

    Slide 14 of a presentation on acoustic testing for a Sea-Tac Airport noise insulation program, explaining that interior DNL (calculated as Exterior DNL minus Noise Level Reduction) is the eligibility metric, with a threshold of 45dB DNL. All 30 homes tested fell below the FAA's 45dB DNL interior noise threshold, including five Pre-1993 homes evaluated under the FAA re-insulation program.
    TagsFAA, Noise Mitigation, Sea-Tac Airport, SIRRPP, Sound Insulation, StARTFolderSIRRPP 20250226
  • 2025-02-26

    StART SIRRPP Update — Acoustic Testing Overview and Results, Slide 13 (February 26, 2025)

    Slide 13 of a presentation titled 'Acoustic Testing Overview and Results' shows two field photographs: an exterior loudspeaker on a tripod set up in front of a residential house, and an interior shot of a technician using a measurement microphone on a pole inside a kitchen. The setup depicts standard residential sound transmission testing methodology.
    TagsPresentation, Sea-Tac Airport, SIRRPP, Sound Insulation, StARTFolderSIRRPP 20250226
  • 2025-02-26

    StART SIRRPP Update — Acoustic Testing Procedures and DNL Metrics — Slide 12 (February 26, 2025)

    This slide from a Seattle-Tacoma International Airport (SEA) noise remedy presentation summarizes acoustic testing procedures, stating that testing followed the FAA-approved 2017 Acoustic Testing Plan (ATP). Key metrics cited include a 70dB DNL exterior noise contour threshold within the 2014 SEA Noise Remedy Boundary and a 27dB Noise Level Reduction (NLR) example calculated from interior and façade measurements.
    TagsFAA, Noise Remedy Program, Sea-Tac Airport, SIRRPP, Sound Insulation, StARTFolderSIRRPP 20250226

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
continue...

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