TagFAA(793)
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2025-08-07More than 1,000 United Airlines flights delayed in the US due to technology problem
By JACK BROOK and LISA BAUMANN A technology issue prompted United Airlines to ground planes at major U.S. airports Wednesday and more than 1,000 flights were delayed. The impacted system, called Unimatic, houses flight information that is fed to other systems including those that calculate weight and balance and track flight times, according to United. It’s not clear -
2025-07-28Appendix D: Biological Resources — ESA Section 7(a)(2) Biological Opinion and EFH Response for Sea-Tac Airport Sustainable Airport Master Plan Near-Term Projects
The National Marine Fisheries Service (NMFS) issued a Biological Opinion on July 28, 2025, in response to a Federal Aviation Administration (FAA) consultation request regarding the Seattle-Tacoma International Airport Sustainable Airport Master Plan Near-Term Projects. The opinion evaluates potential effects of the planned airport projects on endangered species and critical fish habitat under the Endangered Species Act and the Magnuson-Stevens Fishery Conservation and Management Act. The review drew on a Final Biological Evaluation prepared by the FAA to assess impacts on species status, critical habitat, and the surrounding environment. -
2025-07-28Appendix D: Biological Opinion and Essential Fish Habitat Response for Seattle-Tacoma International Airport Sustainable Airport Master Plan Near-Term Projects
The National Marine Fisheries Service (NMFS) issued a Biological Opinion on July 28, 2025, in response to a Federal Aviation Administration consultation request regarding near-term construction projects outlined in the Seattle-Tacoma International Airport Sustainable Airport Master Plan. The opinion evaluates potential effects of these projects on endangered species and critical fish habitat under the Endangered Species Act and the Magnuson-Stevens Fishery Conservation and Management Act. NMFS reviewed and independently verified analyses from the FAA's Biological Evaluation, incorporating findings related to the proposed action area, species status, and effects on critical habitat. -
2025-07-28
Appendix D: Biological Resources — ESA Section 7(a)(2) Biological Opinion and EFH Response for Sea-Tac Airport Sustainable Airport Master Plan Near-Term Projects
The National Marine Fisheries Service (NMFS) issued a Biological Opinion on July 28, 2025, in response to a Federal Aviation Administration (FAA) consultation request regarding the Seattle-Tacoma International Airport Sustainable Airport Master Plan Near-Term Projects. The opinion evaluates potential effects of the planned airport projects on endangered species and critical fish habitat under the Endangered Species Act and the Magnuson-Stevens Fishery Conservation and Management Act. The review drew on a Final Biological Evaluation prepared by the FAA to assess impacts on species status, critical habitat, and the surrounding environment. -
2025-07-28
Biological Opinion and Essential Fish Habitat Response for Seattle-Tacoma International Airport Sustainable Airport Master Plan Near-Term Projects
The National Marine Fisheries Service (NMFS) issued a Biological Opinion on July 28, 2025, in response to a Federal Aviation Administration consultation request regarding near-term construction projects outlined in the Seattle-Tacoma International Airport Sustainable Airport Master Plan. The opinion evaluates potential effects of these projects on endangered species and critical fish habitat under the Endangered Species Act and the Magnuson-Stevens Fishery Conservation and Management Act. NMFS reviewed and independently verified analyses from the FAA's Biological Evaluation, incorporating findings related to the proposed action area, species status, and effects on critical habitat. -
2025-07-282025/2026 StART Shared Federal Aircraft Noise & Emissions Policy Priorities
The StART (Sea-Tac Airport Roundtable) coalition has outlined its 2025/2026 federal policy priorities aimed at reducing aircraft noise and air emissions around Seattle-Tacoma International Airport. Key goals include passing new legislation to fund failed noise insulation repairs and expand EPA authority over aviation emissions, securing funding for sustainable aviation fuel programs, and pushing the FAA to fully implement noise and emissions provisions from the 2024 FAA Reauthorization Act that have stalled under new federal leadership. The group also plans a Washington, D.C. advocacy trip in spring 2026 to advance these priorities with Congressional and Administration officials. -
2025-07-16Acoustical Testing Results for SEA Repair and Replacement Program
Technical memorandum from Harris Miller Miller & Hanson Inc. (HMMH), authored by Eric Cox and addressed to Julie Kinzie, reporting acoustical testing results for the Seattle-Tacoma International Airport (SEA) Repair and Replacement Program conducted in June 2025. HMMH measured median interior Day-Night Average Sound Level (DNL) values for 30 residential structures in SeaTac and Des -
2025-07-16
Acoustical Testing Results for SIRRPP — July 2025
Harris Miller Miller & Hanson Inc. (HMMH) conducted sound insulation measurements at 30 homes near Seattle-Tacoma International Airport in June 2025 to determine whether interior noise levels meet the federal threshold for sound insulation assistance. Using FAA-approved testing methods, the study found that only 3 of the 30 homes had median interior Day-Night Average Sound Levels (DNL) at or above the qualifying 45 dB threshold, while an additional 3 homes had individual rooms exceeding that level. The results inform eligibility decisions under the SEA Repair and Replacement Program, which is governed by FAA Advisory Circular 150/5000-9B and the Airport Improvement Program Handbook. -
2025-07-07Significant Changes to the National Environmental Policy Act Affecting Airport Projects
The National Environmental Policy Act (NEPA) has seen seismic changes in the past several months. On June 30, 2025, FAA rescinded its previous NEPA procedures and issued new Order 1050.1G, Environmental Impacts: Policies and Procedures, to address the recent rescission of the Council on Environmental Quality (CEQ) NEPA regulations, recent Executive Orders, and a recent -
2025-07-0214 CFR part 150 — Airport noise compatibility planning
14 CFR Part 150 sets out the federal rules for airport noise compatibility planning, establishing how airports must measure noise, map affected areas, and develop programs to reduce conflicts between aircraft noise and nearby land uses. It defines key terms such as day-night average sound level (DNL), compatible and noncompatible land use, and noise exposure maps, and it outlines the process by which the FAA reviews and approves or disapproves airport noise compatibility programs. Importantly, FAA approval of such a program does not itself commit federal funding or authorize specific actions without further environmental review.