Proposed Rule 23 Jun 2025 compliance, faa, federal regulations, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directive, aircraft maintenance

✈️Proposed Airworthiness Directive for PZL M28-05 Airplanes

The FAA proposes to adopt a new airworthiness directive (AD) for all Polskie Zaklady Lotnicze Sp. z o.o. Model PZL M28 05 airplanes. This proposed AD was prompted by incorrect flap settings and airspeed during approach for landing under one engine inoperative (OEI) conditions in the airplane flight manual (AFM) emergency procedures. This proposed AD would require revising the existing AFM for your airplane to provide the correct emergency procedures. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 23 Jun 2025 compliance, regulation, aviation, faa, transportation, safety, aircraft, aviation safety, incorporation by reference, air transportation

✈️Proposed Airworthiness Directive for De Havilland Aircraft Compliance

The FAA proposes to supersede Airworthiness Directive (AD) 2019-16-09, which applies to certain De Havilland Aircraft of Canada Limited Model DHC-8-400 series airplanes. AD 2019-16-09 requires one- time inspections for cracks and damage of the elevator power control unit (PCU) brackets and surrounding area, horizontal stabilizer rear spar, and elevator front spar, and related investigative and corrective actions if necessary. Since the FAA issued AD 2019-16-09, new findings have been reported as a result of maintenance activities and/or inspections. This proposed AD would continue to require certain actions in AD 2019-16-09, and would also require repeating the inspections one time and performing applicable on-condition actions, remove an airplane from the applicability, and provide optional terminating action for the repetitive inspections. The FAA is proposing this AD to address the unsafe condition on these products.

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Rule 23 Jun 2025 compliance, regulation, aviation, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, helicopters

🚁Airworthiness Directive for Bell Textron Helicopters - FAA Compliance

The FAA is adopting a new airworthiness directive (AD) for all Bell Textron Canada Limited (BTCL) Model 407 and 427 helicopters. This AD was prompted by a report that certain expandable blade bolts installed on the main rotor blade may not have received the correct heat treatment, which could result in stress corrosion cracking of the expandable blade bolts. This AD requires removing the expandable blade bolts from service and replacing them with a part eligible for installation. This AD also prohibits the installation of an affected expandable blade bolt on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

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Proposed Rule 23 Jun 2025 regulatory compliance, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, airbus, maintenance requirements

✈️Proposed Airworthiness Directives for Airbus SAS Airplanes

The FAA proposes to supersede Airworthiness Directive (AD) 2024-08-05, which applies to certain Airbus SAS Model A330-200 series, A330-200 Freighter series, A330-300 series, A330-841, and A330-941 airplanes. AD 2024-08-05 requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2024-08- 05, the FAA has determined that additional new and more restrictive airworthiness limitations are necessary. This proposed AD would retain certain actions in AD 2024-08-05 until the existing maintenance or inspection program, as applicable, is revised to incorporate the new and more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 23 Jun 2025 compliance, environmental regulation, environmental protection, reporting and recordkeeping requirements, incorporation by reference, business operations, air pollution control, volatile organic compounds, air quality, nitrogen dioxide, california, emissions

🌍Implications of New Air Quality Regulations for San Joaquin Valley

The Environmental Protection Agency (EPA) is proposing to approve the "2023 Maintenance Plan and Redesignation Request for the Revoked 1-Hour Ozone Standard" ("San Joaquin Valley Maintenance Plan" or "Plan") as a revision to the state implementation plan (SIP) for the State of California. The San Joaquin Valley Maintenance Plan includes, among other elements, an emissions inventory consistent with attainment and contingency provisions. The EPA is also proposing to find that the State of California's request to redesignate the San Joaquin Valley area from nonattainment to attainment for the revoked 1979 1-hour national ambient air quality standard (NAAQS or "standard") for ozone ("1979 ozone NAAQS," "1-hour ozone NAAQS," or "1-hour ozone standard") meets all the Clean Air Act (CAA or "the Act") criteria for redesignation. Therefore, the EPA is proposing to terminate all anti-backsliding obligations for the San Joaquin Valley area for the revoked 1-hour ozone NAAQS.

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Rule 20 Jun 2025 aviation, faa, safety, incorporation by reference, business operations, airspace, navigation (air), wyoming, airspace regulation

✈️Modifications to Class E Airspace at Yellowstone Regional Airport

This action modifies the Class E airspace extending upward from 700 feet above the surface of the earth to provide additional instrument flight procedure containment at Yellowstone Regional Airport, Cody, WY. Additionally, this action updates the administrative portion of the airport's Class E airspace legal description. These actions support the safety and management of instrument flight rules (IFR) operations at the airport.

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Proposed Rule 20 Jun 2025 compliance, faa, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directives, aircraft maintenance, helicopters

🚁FAA Proposes Airworthiness Directives for Airbus Helicopters

The FAA proposes to supersede Airworthiness Directive (AD) 2020-24-07, which applies to certain Airbus Helicopters Model AS350B3, EC130B4, and EC130T2 helicopters. AD 2020-24-07 requires modifying and inspecting the pilot's and co-pilot's throttle twist grip (twist grip) for proper operation. Since the FAA issued AD 2020-24-07, Airbus Helicopters developed another modification of the twist grip and additional corrective actions for helicopters already modified. This proposed AD was prompted by reports of the engine remaining in idle when the twist grip was turned from the "IDLE" mode to the "FLIGHT" mode. This proposed AD would retain the actions required by AD 2020-24- 07 and mandate an additional modification, which would constitute terminating action for the repetitive inspections. This proposed AD would also expand the helicopter applicability, propose additional requirements for certain helicopters, and would prohibit installing affected microswitches or an affected twist grip with the affected microswitch. The FAA is proposing this AD to address the unsafe condition on these products.

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Proposed Rule 20 Jun 2025 environmental regulation, environmental protection, epa, reporting and recordkeeping requirements, incorporation by reference, intergovernmental relations, air pollution control, air quality, guam, sulfur oxides, sulfur dioxide

🌍Proposed Clean Data Determination for Guam's Piti-Cabras Area

The Environmental Protection Agency (EPA) is proposing a clean data determination (CDD) for the Piti-Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area") based on our determination that the area has attained the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS"). In designated nonattainment areas where air quality data demonstrate that a NAAQS has been attained, the EPA interprets certain requirements of the Clean Air Act (CAA) as no longer applicable for so long as air quality continues to meet the standard. Under this Clean Data Policy, the EPA may issue a determination of attainment, known as a CDD, that a nonattainment area is attaining the relevant NAAQS. If finalized, this proposed CDD would suspend the obligation to submit certain attainment planning requirements for the Piti-Cabras area for as long as the area continues to attain the 2010 SO<INF>2</INF> NAAQS or until the area is formally redesignated.

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Rule 20 Jun 2025 regulatory compliance, aviation, federal regulations, safety, aircraft, aviation safety, incorporation by reference, air transportation, airworthiness directive, helicopters

🚁New Airworthiness Directive for Airbus EC225LP Helicopters

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC225LP helicopters. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the airworthiness limitations section (ALS) of the existing maintenance manual (MM) or instructions for continued airworthiness (ICAs) and the existing approved maintenance or inspection program, as applicable. The FAA is issuing this AD to address the unsafe condition on these products.

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Rule 20 Jun 2025 regulation, aviation, safety, aircraft, aviation safety, incorporation by reference, financial compliance, air transportation, airworthiness

✈️New Airworthiness Directive for Airbus Canada Limited Partnership Aircraft

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A11 airplanes. This AD was prompted by an investigation of an in-service hydraulic fluid leakage event that indicated the potential use of an uncalibrated torque wrench when tightening the union fittings at the pressure and return interfaces of all three rudder hydraulic power control units (PCUs). This AD requires properly torquing the rudder PCU hydraulic fittings and applying the torque seal on the rudder PCU hydraulic fittings. The FAA is issuing this AD to address the unsafe condition on these products.

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