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Browse 1,000 rules and proposed rules from the Federal Register.
1,000
Total Regulations
Showing 421–450 of 1,000
Page 15 / 34
PHMSA is amending the Federal pipeline safety regulations to incorporate by reference all or parts of 19 updated industry standards. PHMSA is also clarifying certain regulatory provisions and making several editorial corrections.
The FAA is adopting a new airworthiness directive (AD) for certain Siam Hiller Holdings, Inc. (Siam Hiller), Model UH-12E (Army OH-23G and H-23F) and UH-12E-L helicopters. This AD was prompted by reports of cracks found in a main rotor (M/R) transmission drive shaft (drive shaft). This AD requires inspecting certain M/R drive shafts for a crack, prohibits installing certain M/R drive shafts unless the inspection is done, and prohibits using certain paint strippers. The FAA is issuing this AD to address the unsafe condition on these products.
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 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 action proposes to revoke the Class E airspace at Oakwood, TX. The FAA is proposing this action due to the cancellation of the instrument procedures at Carter Ranch Airport, Oakwood, TX.
This action withdraws the notice of proposed rulemaking (NPRM) published in the Federal Register on June 30, 2025, proposing to amend Class D and Class E airspace at Morgantown, WV. The FAA has determined that withdrawal of that NPRM is warranted as new airspace data have been received which significantly change the requirements for the proposed airspace. FAA expects to publish a new NPRM to amend the Class D and Class E airspace at Morgantown, WV, after assessing the new data.
The FAA proposes to supersede Airworthiness Directive (AD) 2020-06-12, which applies to certain Airbus Helicopters Model AS 332L2 and EC 225LP helicopters. AD 2020-06-12 requires determining the accumulated hours time-in-service (TIS) of certain part-numbered main gearbox (MGB) suspension bar attachment bolts (bolt) and certain part- numbered MGB suspension bar attachment fittings (fitting), applying a life limit add-on factor, and inspecting the torque of certain MGB suspension bar attachment nuts (nuts). Since the FAA issued AD 2020-06- 12, the manufacturer developed a design improvement, and the FAA determined modifying the helicopter is necessary. This proposed AD would retain the actions required by AD 2020-06-12 and would also require modification of the MGB suspension bar, inspection of the torque, and corrective actions. This proposed AD would also allow credit for the initial service life calculations if certain requirements are met and would prohibit installing a certain bolt after the modification is accomplished on any helicopter. 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 ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and Model ATR72 airplanes. This proposed AD was prompted by a design review that determined that the inspection interval of the pressure regulator and shut-off valve (PRSOV) functional test must be reduced to meet the design safety objectives, due to a risk of dormant failures. This proposed AD would require repetitive functional tests of each PRSOV, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.
The Department of Transportation (DOT) is announcing its decision to terminate its rulemaking titled "Notifying Air Travelers of DOT's Aviation Consumer Hotline" (RIN 2105-AE83), which was previously listed in DOT's semiannual Regulatory Agenda. That rulemaking would have established a consumer complaints toll-free hotline telephone number and required airlines to display the number on their websites and at airports in accordance with 49 U.S.C. 42302, as amended by section 423 of the FAA Reauthorization Act of 2018 (Pub. L. 115-254). However, before DOT could complete a rulemaking, Congress enacted section 520 of the FAA Reauthorization Act of 2024 (Pub. L. 118-63), which eliminated the requirement from section 42302 that the Department establish the consumer complaints hotline telephone number. Consistent with the Administration's focus on reducing regulation and Congress' elimination of this requirement section 42302, DOT is terminating the proceeding.
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A321-271NY airplanes. This AD was prompted by the determination that affected parts addressed by other ADs could be installed in service on this airplane model. This AD requires corrective action if necessary and prohibits the installation of affected parts. The FAA is issuing this AD to address unsafe conditions on these products.
The FAA is adopting a new airworthiness directive (AD) for all airplanes with certain Pacific Scientific Company rotary buckle assemblies (buckles) installed. This AD was prompted by a report of a manufacturing defect in the screws used inside the buckle. This AD requires inspecting the buckle screws, and depending on the results, reidentifying the buckle, replacing the screws and reidentifying the buckle, or replacing the buckle. This AD also allows optionally prohibiting use of the seat until the actions required by this AD are accomplished. This AD also prohibits installing certain buckles on any airplane. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A300 B4-2C, A300 B4-203, A300 B4-603, A300 B4- 605R, A300 B4-622, A300 B4-622R, and A300 F4-605R airplanes. This AD was prompted by reports of cracking of the main landing gear (MLG) support rib 5 lower flange on certain modified airplanes due to incorrect accomplishment of modification instructions. This AD requires a special detailed inspection (geometrical inspection) of the MLG rib 5 lower flange holes on the left-hand wing and right-hand wing and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
This document announces a fact-finding informal airspace meeting regarding a plan to establish Class C airspace at Wilmington International Airport, NC (KILM). The purpose of the meeting is to solicit aeronautical comments on the proposal's effects on local aviation operations. All comments received during the meeting, and the subsequent comment period, will be considered prior to the issuance of a notice of proposed rulemaking (NPRM).
On July 24, 2025, the FAA published a final rule titled "Modernization of Special Airworthiness Certification". That document amended rules for the manufacture, certification, operation, maintenance, and alteration of lightsport aircraft. After publication of the final rule, FAA became aware of errors in it.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC 130 B4 and EC 130 T2 helicopters. This AD was prompted by the determination that fatigue cracks may develop at the root section of certain tail rotor blades (TRBs). This AD requires inspecting those TRBs and, depending on the results, replacing the TRB with a serviceable TRB. This AD also prohibits installing those TRBs unless certain actions are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A319-112 and -132 airplanes, and Model A320- 214, -232, -233, -251N, and -271N airplanes. This AD was prompted by rivet holes being left unplugged after bracket relocation or removal accomplished during certain modifications, potentially resulting in fatigue damage starting from those rivet holes. This AD requires a one- time special detailed inspection (SDI) of the rivet holes and applicable corrective actions; and allows the installation of certain modifications, provided rivets are installed after the modification. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is superseding Airworthiness Directive (AD) 2020-06- 18, which applied to all Airbus SAS Model A318 series airplanes; A319 series airplanes; A320-211, -212, -214, -216, -231, -232, -233, -251N, -252N, -253N, -271N, -272N, and -273N airplanes; and A321 series airplanes. AD 2020-06-18 required replacement of affected trimmable horizontal stabilizer actuators (THSAs) with serviceable THSAs. Since the FAA issued AD 2020-06-18, a new Airbus airplane model (A321-253NY) has been certified, on which affected parts could be installed in service. This AD continues to require the actions in AD 2020-06-18, revises the applicability to include Model A321-253NY airplanes, and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
These special conditions are issued for the Gulfstream Aerospace Corporation (Gulfstream) Model GVI airplane. This airplane, as modified by Jet Aviation AG, will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is an oxygen distribution system that provides a shared source of oxygen between the flightcrew and passengers to provide supplemental and therapeutic oxygen. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A319-151N, -153N, -171N, and -173N airplanes; Model A320-251N, -252N, -253N, -271N, -272N, and -273N airplanes; and Model A321-251N, -252N, -253N, -271N, -272N, -251NX, -252NX, -253NX, -271NX, -272NX, -253NY, and -271NY airplanes. This AD was prompted by occurrences of high-pressure bleed valve (HPV) butterfly seal retention clip rupture. This AD requires revising the existing airplane flight manual (AFM) and the existing FAA-approved minimum equipment list (MEL), allows replacement of each affected HPV as an optional terminating action, and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 airplanes. This AD was prompted by a report indicating that the clearance between therapeutic flexible oxygen hoses and electrical harnesses may be non-compliant to design requirements, and that positive separation mechanisms and appropriate protective barriers may not have been installed in accordance with the applicable installation standards. This AD requires a detailed inspection of the therapeutic flexible oxygen hose for damage and protection, and the electrical harnesses for damage; a detailed inspection for the clearance between the therapeutic oxygen rigid tube to oxygen hose elbow fitting (also referred to as elbow fitting), if applicable, and the nearest electrical harness, and between the therapeutic flexible oxygen hose and electrical harness; and applicable related investigative and corrective actions. 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 Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This AD was prompted by a report of multiple in-service failures of engine feed check valves, which have resulted in fuel imbalance conditions in flight. This AD requires repetitive replacement of the left-and right-side engine feed check valves with new engine feed check valves and prohibits flight dispatch under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is superseding Airworthiness Directive (AD) 2023-02- 06, which applied to all BAE Systems (Operations) Limited Model 4101 airplanes. AD 2023-02-06 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2023-02- 06, new or more restrictive airworthiness limitations have been developed. This AD continues to require certain actions in AD 2023-02- 06 and requires revising the existing maintenance or inspection program, as applicable to incorporate new or more restrictive airworthiness limitations. 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 SAS Model A318, A319, A320, and A321 series airplanes. This AD was prompted by a heavy maintenance check that found elongation on the upper section of the vertical member's assembly at the frame (FR) 24A cargo panel sub-structure. This AD requires a check for certain repairs, and as applicable, repetitive detailed visual inspections of the vertical member's upper part and the upper fittings at FR 24A in the forward cargo compartment and corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier Inc. Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a report of uncommanded nose wheel steering upon landing with touchdown on the runway centerline. This proposed AD would require replacing the nosewheel steering potentiometer universal coupling setscrews. This proposed AD would also require revising the existing maintenance or inspection program, as applicable, to incorporate new life limits for the setscrews. The FAA is proposing this AD to address the unsafe condition on these products.
This document announces a fact-finding informal airspace meeting regarding a plan to amend Class C airspace at Ted Stevens Anchorage International Airport, AK (PANC). The purpose of the meeting is to solicit aeronautical comments on the proposal's effects on local aviation operations. All comments received from the public during this meeting and the subsequent comment period will be considered prior to the revision or issuance of any notice of proposed rulemaking (NPRM) on this matter. DATES: Two meeting opportunities will be held virtually. The first will be on Tuesday, September 23, 2025, from 5:00 p.m. to 7:00 p.m. (Alaska Standard Time), and the second will be on Wednesday, September 24, 2025, from 1:00 p.m. to 3:00 p.m. (Alaska Standard Time). Comments must be received on or before October 24, 2025.
This action proposes to amend the Class D and Class E airspace, establish Class E airspace, and revoke Class E airspace at Wichita, KS. The name of Wichita Dwight D. Eisenhower National Airport, Wichita, KS; the geographic coordinates of Augusta Municipal Airport, Augusta, KS; and the name and geographic coordinates of the McConnell AFB, Wichita, KS, and the Wichita Dwight D. Eisenhower Intl: RWY 01R- LOC would also be updated to coincide with the FAA's aeronautical database. The FAA is proposing these actions to accommodate a U.S. Air Force request to change the McConnell AFB Class D airspace from full- time to part-time and establish part-time Class E surface airspace and the associated airspace reviews conducted to accommodate this request. This action will bring the airspace into compliance with FAA orders and support instrument flight rule (IFR) procedures and operations.
This notice announces a fact-finding informal airspace meeting regarding a plan to amend Class C airspace at Jacksonville International Airport, FL (KJAX). The purpose of the meeting is to solicit aeronautical comments on the proposal's effects on local aviation operations. All comments received during the meeting, and the subsequent comment period, will be considered prior to the issuance of a notice of proposed rulemaking (NPRM).
This notice announces a fact-finding informal airspace meeting regarding a plan to amend Class C airspace at Daytona Beach International Airport, FL (KDAB). The purpose of the meeting is to solicit aeronautical comments on the proposal's effects on local aviation operations. All comments received during the meeting, and the subsequent comment period, will be considered prior to the issuance of a notice of proposed rulemaking (NPRM).
This action proposes to amend the Class E airspace at George West, TX. The FAA is proposing this action as the result of an airspace review conducted due to the decommissioning of the Three Rivers very high frequency omnidirectional range (VOR) as part of the VOR Minimum Operational Network (MON) Program. This action would bring the airspace into compliance with FAA orders and support instrument flight rule (IFR) procedures and operations.
This action proposes to amend the Class D and Class E airspace at Burns Flat, OK, and update the name of the Clinton/Sherman Airport, Burns Flat, OK, to coincide with the FAA's aeronautical database. The FAA is proposing this action as the result of an airspace review conducted due to the decommissioning of the Burns Flat localizer outer marker (LOM) and outer marker (OM). This action would bring the airspace into compliance with FAA orders and support instrument flight rule (IFR) procedures and operations.