Bill > HR4994

This bill requires the Federal Aviation Administration (FAA) to update its regulations to phase out the use of bleed air systems in aircraft. A bleed air system is a method of providing pressurized air to an aircraft's pneumatic system by drawing compressed air from an aircraft engine's compressor stage before the combustion chamber. The bill mandates that new aircraft designs will be prohibited from using bleed air systems, and all newly manufactured aircraft must have filters to remove oil fumes and gaseous components if they continue to use such systems. The legislation establishes a gradual phase-out timeline for existing aircraft designs: 25% of aircraft must be manufactured without bleed air systems within 10 years, 50% within 20 years, and 100% within 30 years of the Act's enactment. The primary goal appears to be improving air quality and safety for passengers and crew by reducing potential exposure to potentially harmful engine-generated air contaminants. This approach provides a structured, long-term strategy for transitioning aircraft manufacturing away from current bleed air system technologies.

Transportation and Infrastructure

https://www.congress.gov/bill/119th-congress/house-bill/4994/all-info