A Port of Seattle presentation slide listing four continuing noise abatement programs at Sea-Tac Airport that require no modifications: Use of VOR Radials to Curb Aircraft Drifting from Noise Abatement Tracks, Preferential Runway Use (nighttime north flow corridor), Use of Flight Management System Procedures, and Use of Ground Equipment (gate power and conditioned air to reduce auxiliary power unit usage).Open full document
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A Port of Seattle presentation slide listing four continuing noise abatement programs at Sea-Tac Airport that require no modifications: Use of VOR Radials to Curb Aircraft Drifting from Noise Abatement Tracks, Preferential Runway Use (nighttime north flow corridor), Use of Flight Management System Procedures, and Use of Ground Equipment (gate power and conditioned air to reduce auxiliary power unit usage).