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Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG Trent XWB-97 model turbofan engines. This AD requires updating electronic engine control (EEC) software. This AD was prompted by the manufacturer's finding that a P30 (air pressure) sense line could become partially blocked with a mixture of ice...
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD requires a repetitive check of the fuel quantity indicating system (FQIS) fuel quantity calculation for the center wing tank (CWT) fuel quantity, developing a process to provide documentation to the flight crew that this check was...
Air Plan Approval; Louisiana; Infrastructure for the 2015 Ozone National Ambient Air Quality Standards
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving elements of two State Implementation Plan (SIP) submittals from Louisiana for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The submittals address how the existing SIP provides for the implementation, maintenance, and...
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving a revision to the Louisiana State Implementation Plan (SIP) submitted by the State of Louisiana (``State'') on May 30, 2019 that pertains to gasoline dispensing facilities (GDFs) in the parishes of Ascension, East Baton Rouge,...
National Emission Standards for Hazardous Air Pollutants: Engine Test Cells/Stands Residual Risk and Technology Review
This action finalizes the residual risk and technology review (RTR) conducted for the Engine Test Cells/Stands source category regulated under national emission standards for hazardous air pollutants (NESHAP). In addition, we are taking final action on amendments to the Engine Test Cells/Stands NESHAP addressing periods of startup, shutdown, and...
This final rule amends the U.S. Department of Agriculture's administrative regulations by adding procedural regulations for the review and issuance of agency guidance documents.
American Society of Mechanical Engineers 2015-2017 Code Editions Incorporation by Reference; Correction
The U.S. Nuclear Regulatory Commission (NRC) is correcting a rule that was published in the Federal Register on May 4, 2020, regarding its regulations to incorporate by reference the 2015 and 2017 Editions of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code and the 2015 and 2017 Editions of the American Society of...