🌫️Clean Data Determination for Los Angeles-South Coast Air Basin
The Environmental Protection Agency (EPA) is making a clean data determination (CDD) for the Los Angeles-South Coast Air Basin ("South Coast") air quality planning area in California based on our determination that the area is attaining the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS). As a result of this CDD, certain Clean Air Act (CAA) requirements that have applied to California will be suspended for so long as the area continues to meet the 2006 24-hour PM<INF>2.5</INF> NAAQS. The EPA is also approving a revision to California's state implementation plan (SIP) consisting of the 2018 base year emissions inventory for the South Coast PM<INF>2.5</INF> nonattainment area, submitted by the California Air Resources Board (CARB) on December 29, 2020.
Learn More🌍New Jersey NOₓ SIP Compliance and Memorandum of Agreement
The Environmental Protection Agency (EPA) is proposing to approve a revision in the New Jersey State Implementation Plan (SIP) that includes a signed Memorandum of Agreement (MOA) developed between the EPA and the New Jersey Department of Environmental Protection (NJDEP). The MOA demonstrates how the State will maintain compliance with its nitrogen oxides (NO<INF>X</INF>) emission control obligations for the types of large non-electricity generating units (non-EGUs) that were previously regulated under the New Jersey NO<INF>X</INF> Budget Program. This action is being taken in accordance with the requirements of the Clean Air Act (CAA).
Learn More✈️New Airworthiness Directives for GE Engines by FAA
The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2, GEnx-1B67, GEnx-1B67/P1, GEnx-1B67/P2, GEnx-1B70, GEnx- 1B70/75/P1, GEnx-1B70/75/P2, GEnx-1B70/P1, GEnx-1B70/P2, GEnx-1B70C/P1, GEnx-1B70C/P2, GEnx-1B74/75/P1, GEnx-1B74/75/P2, GEnx-1B76/P2, GEnx- 1B76A/P2, and GEnx-2B67/P engines. This AD was prompted by a manufacturer's investigation that revealed certain high-pressure turbine (HPT) stage 1 and HPT stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. This AD requires replacement of affected HPT stage 1 and HPT stage 2 disks with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
Learn More♻️EPA Proposes Revisions to Alter Metal Recycling Permit in Iowa
The Environmental Protection Agency (EPA) is proposing approval of revisions to the Iowa State Implementation Plan (SIP) to include a permit modification for Alter Metal Recycling. The SIP revision addresses modifications to the air construction permit for Alter Metal Recycling included in the State's 2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS) attainment plan for portions of Council Bluffs, Pottawattamie County, IA. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).
Learn More✈️Revocation of Class D and E4 Airspace in Aberdeen, MD
This action removes Class D and E4 airspace at Phillips Army Airfield (AAF), Aberdeen, MD, due to the closure of the air traffic control tower. This action establishes Class E2 airspace extending upward from the surface above Phillips AAF at the request of the United States Army to provide the required airspace for Instrument Flight Rules (IFR) operations at Phillips AAF. This action also amends Class E5 airspace to accommodate the decommissioning of the Aberdeen non-directional radio beacon (NDB) and cancellation of the associated instrument approach procedures. Controlled airspace is necessary for the safety and management of IFR operations in the area for existing instrument approaches.
Learn More🚁Proposed Airworthiness Directive for Airbus Helicopters AD 2025-0916
The FAA proposes to supersede Airworthiness Directive (AD) 2024-10-13, which applies to all Airbus Helicopters Model AS332C, AS332C1, AS332L, AS 332L1, AS 332L2, and EC 225LP helicopters. AD 2024- 10-13 requires visually inspecting the bowls of the left-hand (LH) and right-hand (RH) fuel filters for any cracks and seepage. Depending on the inspection results, AD 2024-10-13 requires removing an affected fuel filter from service and replacing that part. AD 2024-10-13 also allows a certain fuel filter to be installed on any helicopter if certain actions are accomplished. Since the FAA issued AD 2024-10-13, additional inspection criteria was developed. This proposed AD would require the same actions as AD 2024-10-13 but would remove some helicopters from the applicability, add an inspection of the inner surface of the fuel filter bowls, and revise the tightening torque. The FAA is proposing this AD to address the unsafe condition on these products.
Learn More✈️Airworthiness Directive for Pilatus Aircraft Model PC-24 Compliance
The FAA is superseding Airworthiness Directive (AD) 2023-26- 05, which applied to certain Pilatus Aircraft Ltd. (Pilatus) Model PC- 24 airplanes. AD 2023-26-05 required periodic replacement of affected titanium threaded bolts, a one-time inspection of the rudder mass balance arm and other elements of the rudder trim tab installation for correct attachment, damage (gouges), cracks, deformation, surface finish, and corrosion on any surrounding parts and, depending on findings, the accomplishment of applicable corrective actions. Since the FAA issued AD 2023-26-05, it was determined that some batches of titanium bolts had variations in the microstructure that could affect the fatigue characteristics. This AD requires replacing affected short rudder-trim control rod assemblies with serviceable rudder-trim control rod assemblies having threaded steel bolts and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
Learn More🎈New FAA Airworthiness Directive for Cameron Balloons Fuel Cylinders
The FAA is adopting a new airworthiness directive (AD) for Cameron Balloons Ltd. (Cameron) fuel cylinders fitted with certain pressure relief valve (PRV) adaptors on hot air balloons. This AD was prompted by the discovery of cracks on the upper hex portion of PRV adaptors. This AD requires repetitively visually checking the PRV adaptor for cracks and removing any fuel cylinder with a cracked PRV adaptor from service. The FAA is issuing this AD to address the unsafe condition on these products.
Learn More✈️Amendment of Class D and Establishment of Class E Airspace in Warner Robins
This action amends Class D airspace and establishes Class E airspace extending upward from the surface above Robins AFB, Warner Robins, GA, as the air traffic control tower will shift to part-time operations. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport.
Learn More✈️FAA Proposes Airworthiness Directive for Pratt & Whitney Engines
The FAA proposes to adopt a new airworthiness directive (AD) for certain Pratt & Whitney (PW) Model F117-PW-100, PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, and PW2643 engines. This proposed AD was prompted by an updated analysis of an event involving an International Aero Engines, LLC (IAE LLC) Model PW1127GA-JM engine, which experienced a high-pressure compressor (HPC) 7th-stage integrally bladed rotor (IBR-7) separation that resulted in an engine shutdown and aborted takeoff. This proposed AD would require repetitive angled ultrasonic inspections (AUSIs) of certain high-pressure turbine (HPT) 1st-stage disks and turbine hubs for any crack indications, and if necessary, removal from service and replacement, and removal from service of certain HPT lenticular seal assemblies. The FAA is proposing this AD to address the unsafe condition on these products.
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