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Browse 1,000 rules and proposed rules from the Federal Register.
1,000
Total Regulations
Showing 661–690 of 1,000
Page 23 / 34
This rule makes administrative updates to FRA's grade crossing safety regulations, including updating addresses in those regulations.
FRA proposes to eliminate the Federal requirement that defines the process a track owner must follow when scheduling the evaluation of bridges with no load capacity determination. The requirement was intended as a transitional measure to phase in compliance after the bridge safety regulations became effective. The restrictions on the track owner's discretion to determine the process for evaluation of bridge load capacity are no longer necessary because the regulations have been in effect for almost fifteen years and the transitional period for compliance has ended.
FRA proposes to amend its mechanical equipment safety standards related to brake inspections for passenger and freight rail equipment. The proposed changes focus on the incorporation of longstanding waivers for locomotive brake system maintenance and inspection requirements. The amendments are consistent with the mandates of the Infrastructure Investment and Jobs Act (IIJA), which require FRA to review and analyze certain longstanding waivers to determine whether incorporating the waivers into FRA's regulations is justified, and the Executive Order for Ensuring Lawful Governance and Implementing the President's "Department of Government Efficiency" Deregulatory Initiative.
FRA proposes to amend its regulations governing the qualification and certification of locomotive engineers and conductors, to codify longstanding waivers that have granted relief from certain certification requirements for railroads that participate in the FRA- sponsored Confidential Close Call Reporting System (C\3\RS). FRA does not intend this NPRM to be a disincentive to railroads implementing alternative close call reporting programs outside C\3\RS, which the agency believes can still positively impact safety culture. FRA would still entertain waiver requests to implement alternative close call reporting programs, as necessary.
This rule makes administrative updates to FRA's instructions governing applications for approval of a discontinuance or material modification of a signal system regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's brake system safety standards regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's signal and train control regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's signal systems reporting requirements regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's U.S. locational requirement for dispatching of U.S. rail operations regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's passenger equipment safety standards regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's bridge safety standards regulations, including updating addresses in those regulations.
This rule amends, suspends, or removes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide for the safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
This rule establishes, amends, suspends, or removes Standard Instrument Approach Procedures (SIAPS) and associated Takeoff Minimums and Obstacle Departure procedures (ODPs) for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
This action proposes to amend the Class D and Class E airspace at Morgantown Municipal Airport-Walter L. Bill Hart Field, Morgantown, WV. The FAA is proposing this action as the result of a biennial airspace review. This action will bring the airspace into compliance with FAA orders and support instrument flight rule (IFR) operations.
The FAA proposes to adopt a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 airplanes. This proposed AD was prompted by a determination that new and more restrictive airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable to incorporate new and more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by reports of electronic centralized aircraft monitor (ECAM) messages requiring flight control remote module (FCRM) replacement linked to solder structural fatigue. This proposed AD would require replacement of affected parts before exceeding the life limit and would limit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.
This action proposes to amend the Class D and Class E airspace at Elkhart, IN, and the Class E airspace at Goshen, IN. The geographic coordinates of the Elkhart Municipal Airport, Elkhart, IN, and the Goshen Municipal Airport, Goshen, IN, would also be updated to coincide with the FAA's aeronautical database. The FAA is proposing this action as the result of airspace reviews conducted due to the decommissioning of the Goshen very high frequency omnidirectional range (VOR) as part of the VOR Minimum Operational Network (MON) Program. This action will bring the airspace into compliance with FAA orders and supports instrument flight rule (IFR) procedures and operations.
The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-9 and 787-10 airplanes. This proposed AD was prompted by reports of multiple supplier notices of escapement (NOEs) indicating that multiple cargo barrier fitting links were possibly manufactured with an incorrect titanium alloy material. This proposed AD would require a high frequency eddy current (HFEC) or handheld X-ray fluorescence (XRF) spectrometer inspection of the cargo barrier fitting link to determine the titanium alloy material, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.
The FAA proposes to adopt a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) Model LEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP- 1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, and LEAP-1A35A engines. This proposed AD was prompted by a report of multiple aborted takeoffs and air turn-backs (ATBs) caused by high-pressure compressor (HPC) stall, which was induced by high levels of non-synchronous vibration (NSV). Additional manufacturer investigation revealed that wear on the No. 3 bearing spring finger housing can lead to high levels of NSV. This proposed AD would require initial and repetitive calculations of the levels of NSV, inspection of the stage 2 high- pressure turbine (HPT) nozzle assembly honeycomb and HPT stator stationary seal honeycomb and, depending on the results of the calculations and inspections, replacement of certain parts. This AD also requires replacement of certain No. 3 bearing spring finger housings at a certain time. The FAA is proposing this AD to address the unsafe condition on these products.
The FAA is withdrawing an NPRM that proposed to adopt a new airworthiness directive (AD) that would have applied to all Safran Helicopter Engines, S.A. (Safran) Model ARRIUS 2F and ARRIUS 2R engines. The NPRM was prompted by a manufacturer investigation that revealed certain high-pressure (HP) turbine blades may contain non- compliant porosity rates due to a change in the manufacturing process. The NPRM would have required replacement of affected HP turbine blades. Since the NPRM was issued, further investigation and tests demonstrated that the non-compliant rate of porosity has no impact on the use limit of the affected parts and the FAA has determined that the unsafe condition no longer exists. Accordingly, the NPRM is withdrawn.
The FAA proposes to supersede Airworthiness Directive (AD) 2021-26-07, which applies to all Airbus Helicopters Model EC120B helicopters. AD 2021-26-07 requires performing repetitive inspections of the tail rotor (TR) hub body and, depending on the inspection results, replacing certain parts, and accomplishing further inspections. AD 2021-26-07 also requires for certain helicopters removing from service any bolt, washer, and nut installed on the TR hub body at certain life limits and replacing them with airworthy parts and accomplishing further inspections. Additionally, AD 2021-26-07 prohibits the installation of a certain part-numbered TR hub body unless certain requirements are met. Since the FAA issued AD 2021-26- 07, it was determined that modifying the link of the TR hub body and splined flange by adding red paint marks is necessary to enable the detection of any loss of tightening torque. This proposed AD would require the same repetitive inspections and corrective actions as AD 2021-26-07 and would require modification of the link of the TR hub body, which would be a terminating action for the repetitive inspections. The proposed AD would also require repetitive inspections of the red paint line added during the modification of the link of the TR hub body for alignment. The FAA is proposing this AD to address the unsafe condition on these products.
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.
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.
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.
PHMSA, in coordination with the Federal Railroad Administration, is amending the Hazardous Materials Regulations in response to the recent decision of the United States Court of Appeals for the District of Columbia Circuit in Sierra Club, et al. v. DOT, et al., No. 20-1317 (Jan. 17, 2025).
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.
The FAA is superseding Airworthiness Directive (AD) 2023-09- 06, which applied to all CFM International, S.A. Model (CFM) LEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, and LEAP- 1A35A (LEAP-1A) engines. AD 2023-09-06 required replacement of certain high-pressure turbine (HPT) rotor stage 1 disks (HPT stage 1 disks), forward outer seals, and compressor rotor stages 6-10 spools. AD 2023- 09-06 also prohibited installation of an HPT stage 1 disk, forward outer seal, or compressor rotor stages 6-10 spool that has a part number and serial number identified in the service information onto any engine. Since the FAA issued AD 2023-09-06, the manufacturer identified additional affected parts that were manufactured from material suspected to have reduced material properties due to iron inclusion, which prompted this AD. This AD retains the requirements to replace certain HPT stage 1 disks, forward outer seals, and compressor rotor stages 6-10 spools and expands the applicability to include additional affected parts manufactured from the same material suspected to have reduced material properties due to iron inclusion. The FAA is issuing this AD to address the unsafe condition on these products.
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.
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.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS332L1 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.