Federal Register #2026-08338

FAA Regulatory Actions Affecting Airbus A330 Oxygen Systems and Nashua, NH Airspace; IRS Clean Fuel Credit Hearing

This summary covers recent regulatory actions and public hearings proposed by the Federal Aviation Administration (FAA) and the Internal Revenue Service (IRS):

• Government Buyers

  • Federal Aviation Administration (FAA), Department of Transportation
  • Airworthiness Products Section, Operational Safety Branch
  • Eastern Service Center
  • Internal Revenue Service (IRS)

• OEMs and Vendors

  • Airbus SAS (highlighted as the affected aircraft OEM)

• Products and Services Requested

  • No procurement of products or services; this is a regulatory action.
  • FAA proposes an airworthiness directive (AD) for Airbus SAS A330 aircraft with a single oxygen cylinder flightcrew oxygen system:
  • Limits ETOPS180 operations to three flightcrew members due to insufficient oxygen supply risk
  • Requires updates to the airplane flight manual supplement limitations
  • FAA proposes to amend Class D airspace and remove Class E4 airspace over Boire Field Airport, Nashua, NH
  • IRS announces a public hearing on proposed regulations for clean fuel production credits

• Unique or Notable Requirements

  • The airworthiness directive specifically targets Airbus SAS A330 models with a single oxygen cylinder for the flightcrew
  • The airspace amendment updates legal descriptions and removes unnecessary airspace classifications
  • The IRS hearing addresses eligibility and certification for clean fuel production credits

• Places of Performance and Government Facilities

  • Boire Field Airport, Nashua, NH (federal facility)
  • Pepperell Airport, MA (federal facility)
  • Internal Revenue Service Building, 1111 Constitution Avenue NW, Washington, DC (federal office)
  • FAA Airworthiness Products Section, 2200 South 216th St., Des Moines, WA (federal office)
  • FAA Eastern Service Center, 1701 Columbia Avenue, College Park, GA (federal office)

Description

This action proposes to amend Class D airspace and remove Class E4 airspace over Nashua, NH. It would remove Class E4 airspace extending upward from the surface for Boire Field Airport, Nashua, NH, as this airspace is no longer needed to contain instrument flight rules (IFR) operations at the airport. The proposal also includes replacing "Notice to Air Missions" with "Notice to Airmen" within the Class D airspace legal description to comply with current FAA guidance. Comments on this proposed rule must be received by June 15, 2026.

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