TagGreener Skies(30)

This November 2012 Federal Aviation Administration report evaluates the environmental impacts of proposed new arrival flight procedures at Seattle-Tacoma International Airport, part of the 'Greener Skies Over Seattle' initiative. It includes detailed appendices covering noise modeling, effects of aircraft noise on communities, historic and endangered species considerations, and agency coordination records. The goal of the proposed procedures was to reduce fuel consumption and emissions while assessing changes in noise exposure for surrounding neighborhoods.

ICAO good practice case study documenting the US/FAA NextGen ‘Greener Skies over Seattle’ initiative — a Final Environmental Assessment (FEA) completed November 1, 2012 for proposed PBN arrival procedures (STARs and RNP with Optimized Profile Descents) at Seattle-Tacoma International Airport (KSEA/Sea-Tac Airport). Collaborative project between FAA, Alaska Air Group (Alaska Airlines, Horizon Air), The Boeing

In October 2012, the Federal Aviation Administration (FAA) approved new GPS-based arrival flight paths into Seattle-Tacoma International Airport (Sea-Tac) under the 'Greener Skies Over Seattle' initiative. The new procedures, developed in partnership with Alaska Airlines, Boeing, and the Port of Seattle, use satellite navigation technology to guide arriving aircraft on more precise, fuel-efficient descent paths from the northwest and southwest. The FAA concluded that the changes would not cause significant environmental harm, issuing a Finding of No Significant Impact (FONSI) alongside its formal approval.

FAA Draft Environmental Assessment (EA), Volume 2 Appendices, for the Greener Skies Over Seattle project proposing new arrival procedures to Seattle-Tacoma International Airport (Sea-Tac Airport / KSEA), dated 31 October 2012. Appendices cover noise metrics (DNL, SEL, Leq, dBA), NIRS noise modeling technical report, aircraft operations and flight tracks, runway utilization, meteorological conditions, historic resource

The Highline Forum, a regional body representing cities surrounding Seattle-Tacoma International Airport, met in November 2011 to discuss aircraft noise concerns, including missed approaches and over-flight patterns affecting communities like Normandy Park and Federal Way. The meeting featured an FAA briefing on the Four Post Plan governing air traffic flow, as well as an update on the Greener Skies Initiative, which aims to use advanced navigation technology to reduce noise and emissions during aircraft approaches. A follow-up meeting was scheduled for March 2012 to continue discussions on refining the Forum's role and addressing ongoing community and port issues.

The FAA issued a Categorical Exclusion Declaration allowing limited testing of new Required Navigation Performance (RNP) arrival procedures at Seattle-Tacoma International Airport, under the Greener Skies Over Seattle initiative. The test procedures, including optimized flight paths and descent profiles, were designed to reduce aircraft noise, fuel burn, and emissions while improving safety and efficiency. The exclusion, signed in February 2012, determined that the test phase would not require further environmental review, as it was a short-term evaluation to collect operational and noise data.