AD 2026-18-01

final rule

Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

AD Number
2026-18-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2026-8792
FR Citation
91 FR 56584

Applicability

TypeManufacturerModelDetails
aircraft ATR-GIE Avions de Transport Régional Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

Unsafe Condition

unsafe condition on these products.

Required Actions

revising the existing maintenance or inspection program, as applicable, to incorporate a new airworthiness limitation

Federal Register Abstract

The FAA is adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R[eacute]gional Model ATR42-500 airplanes. This AD was prompted by a determination that a new airworthiness limitation is necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate a new airworthiness limitation. The FAA is issuing this AD to address the unsafe condition on these products.

Document Text

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56584 Federal Register / Vol. 91, No. 170 / Thursday, September 3, 2026 / Rules and Regulations DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2026–8792; Project Identifier MCAI–2025–01180–T; Amendment 39–23456; AD 2026–18–01] RIN 2120–AA64 Airworthiness Directives; ATR–GIE Avions de Transport Re ´ gional Airplanes AGENCY : Federal Aviation Administration (FAA), DOT. ACTION : Final rule; request for comments. SUMMARY : The FAA is adopting a new airworthiness directive (AD) for certain ATR–GIE Avions de Transport Re ´gional Model ATR42–500 airplanes. This AD was prompted by a determination that a new airworthiness limitation is necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate a new airworthiness limitation. The FAA is issuing this AD to address the unsafe condition on these products. DATES : This AD is effective September 18, 2026. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of September 18, 2026. The FAA must receive comments on this AD by October 19, 2026. ADDRESSES : You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to regulations.gov . Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2026–8792; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The street address for Docket Operations is listed above. Material Incorporated by Reference: • For European Union Aviation Safety Agency (EASA) material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu. You may find this material on the EASA website at ad.easa.europa.eu. • You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available at regulations.gov under Docket No. FAA–2026–8792. FOR FURTHER INFORMATION CONTACT : Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516–228– 7350; email: 9-AVS-AIR-BACO-COS@ faa.gov. SUPPLEMENTARY INFORMATION : Comments Invited The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments using a method listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2026–8792; Project Identifier MCAI–2025–01180–T’’ at the beginning of your comments. The most helpful comments reference a specific portion of the final rule, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend this final rule because of those comments. Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to regulations.gov , including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this final rule. Confidential Business Information CBI is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this AD contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this final rule, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as ‘‘PROPIN.’’ The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this final rule. Submissions containing CBI should be sent to Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516–228–7350; email: 9-AVS-AIR-BACO-COS@faa.gov. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. Background EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2025–0135, dated June 26, 2025 (EASA AD 2025– 0135) (also referred to as the MCAI), to correct an unsafe condition on certain ATR–GIE Avions de Transport Re ´gional Model ATR42–400 and –500 airplanes. Model ATR42–400 airplanes are not certificated by the FAA and are not included on the U.S. type certificate data sheet; this AD therefore does not include those airplanes in the applicability. The MCAI states a new airworthiness limitation has been developed. This new airworthiness limitation is contained in Temporary Revision 18.9 of ATR42–400/–500 Time Limits Document (TLD), dated April 9, 2025 (TR 18.9). The FAA is issuing this AD to address the inability to close the ventilation electrical shut-off valves in case of annunciated smoke in a Class E cargo compartment, which could allow suppressed fire to reignite and further propagate. This condition, if not addressed, could result in an uncontrolled fire in the cargo compartment. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA–2026–8792. Other Relevant Rulemaking EASA AD 2025–0135 refers to EASA AD 2024–0052, dated February 23, 2024 (EASA AD 2024–0052); EASA AD 2025– 0005, dated January 7, 2025 (EASA AD 2025–0005); and AD 2025–0045, dated February 19, 2025 (EASA AD 2025– 0045); which were previously issued to require the airworthiness limitations in ATR42–400/-500 TLD, Revision 18, dated October 16, 2023; TR 18.1 of ATR42–400/-500 TLD, dated July 30, 2024; and TR 18.3 of ATR42–400/-500 TLD, dated November 22, 2024; respectively. The FAA issued AD 2024– 19–02, Amendment 39–22844 (89 FR 82491, October 11, 2024) (AD 2024–19– 02); AD 2025–25–10, Amendment 39– 23218 (91 FR 202, January 5, 2026) (AD VerDate Sep<11>2014 16:06 Sep 02, 2026 Jkt 268001 PO 00000 Frm 00036 Fmt 4700 Sfmt 4700 E:\FR\FM\03SER1.SGM 03SER1 khammond on DSK9W7S144PROD with RULES

56585 Federal Register / Vol. 91, No. 170 / Thursday, September 3, 2026 / Rules and Regulations 2025–25–10); and AD 2026–10–08, Amendment 39–23348 (91 FR 31353, May 27, 2026) (AD 2026–10–08); to adopt the requirements of EASA AD 2024–0052, EASA AD 2025–0005, EASA AD 2025–0045, respectively. The FAA reviewed all the relevant service information and determined that revising the existing maintenance or inspection program, as applicable, to incorporate the new airworthiness limitations in EASA AD 2025–0135 as referenced in TR 18.9 would not affect compliance with FAA AD 2024–19–02, AD 2025–25–10, and AD 2026–10–08. Material Incorporated by Reference Under 1 CFR Part 51 EASA AD 2025–0135 specifies a new airworthiness limitation for performing repetitive operational tests of the air conditioning ( i.e., ventilation electrical) shut-off valves. This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA’s Determination These products have been approved by the civil aviation authority of another country and are approved for operation in the United States. Pursuant to the FAA’s bilateral agreement with this State of Design Authority, that authority has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA is issuing this AD after determining that the unsafe condition described previously is likely to exist or develop on other products of the same type design. AD Requirements This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate a new airworthiness limitation, which is specified in EASA AD 2025–0135 described previously, as incorporated by reference. Any differences with EASA AD 2025–0135 are identified as exceptions in the regulatory text of this AD. This AD requires revisions to certain operator maintenance documents to include new actions ( e.g., inspections). Compliance with these actions is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by this AD, the operator may not be able to accomplish the actions described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance (AMOC) according to paragraph (j)(1) of this AD. Explanation of Required Compliance Information In the FAA’s ongoing efforts to improve the efficiency of the AD process, the FAA developed a process to use some civil aviation authority (CAA) ADs as the primary source of information for compliance with requirements for corresponding FAA ADs. The FAA has been coordinating this process with manufacturers and CAAs. As a result, EASA AD 2025–0135 is incorporated by reference in this AD. This AD requires compliance with EASA AD 2025–0135 through that incorporation, except for any differences identified as exceptions in the regulatory text of this AD. Using common terms that are the same as the heading of a particular section in EASA AD 2025–0135 does not mean that operators need comply only with that section. For example, where the AD requirement refers to ‘‘all required actions and compliance times,’’ compliance with this AD requirement is not limited to the section titled ‘‘Required Action(s) and Compliance Time(s)’’ in EASA AD 2025–0135. Material required by EASA AD 2025– 0135 for compliance will be available at regulations.gov under Docket No. FAA– 2026–8792 after this final rule is published. Airworthiness Limitation ADs Using the New Process The FAA’s process of incorporating by reference MCAI ADs as the primary source of information for compliance with corresponding FAA ADs has been limited to certain MCAI ADs (primarily those with service bulletins as the primary source of information for accomplishing the actions required by the FAA AD). However, the FAA is now expanding the process to include MCAI ADs that require a change to airworthiness limitation documents, such as airworthiness limitation sections. For these ADs that incorporate by reference an MCAI AD that changes airworthiness limitations, the FAA requirements are unchanged. Operators must revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in the new airworthiness limitation document. The airworthiness limitations must be followed according to 14 CFR 91.403(c) and 91.409(e). The previous format of the airworthiness limitation ADs included a paragraph that specified that no alternative actions ( e.g., inspections or intervals) may be used unless the actions and intervals are approved as an AMOC in accordance with the procedures specified in the AMOCs paragraph under ‘‘Additional AD Provisions.’’ This new format includes a ‘‘Provisions for Alternative Actions and Intervals’’ paragraph that does not specifically refer to AMOCs, but operators may still request an AMOC to use an alternative action or interval. Justification for Immediate Adoption and Determination of the Effective Date Section 553(b) of the Administrative Procedure Act (APA) (5 U.S.C. 551 et seq. ) authorizes agencies to dispense with notice and comment procedures for rules when the agency, for ‘‘good cause,’’ finds that those procedures are ‘‘impracticable, unnecessary, or contrary to the public interest.’’ Under this section, an agency, upon finding good cause, may issue a final rule without providing notice and seeking comment prior to issuance. Further, section 553(d) of the APA authorizes agencies to make rules effective in less than thirty days, upon a finding of good cause. There are currently no domestic operators of these products. Accordingly, notice and opportunity for prior public comment are unnecessary, pursuant to 5 U.S.C. 553(b). In addition, for the foregoing reason(s), the FAA finds that good cause exists pursuant to 5 U.S.C. 553(d) for making this amendment effective in less than 30 days. Regulatory Flexibility Act The requirements of the Regulatory Flexibility Act (RFA) do not apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and comment. Because the FAA has determined that it has good cause to adopt this rule without notice and comment, RFA analysis is not required. Costs of Compliance Currently, there are no affected U.S.- registered airplanes. For any affected airplane that may be imported and placed on the U.S. Register in the future, the FAA provides the following cost estimates to comply with this AD: The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 work- hours per operator, although the agency recognizes that this number may vary from operator to operator. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the FAA has determined that a per-operator estimate VerDate Sep<11>2014 16:06 Sep 02, 2026 Jkt 268001 PO 00000 Frm 00037 Fmt 4700 Sfmt 4700 E:\FR\FM\03SER1.SGM 03SER1 khammond on DSK9W7S144PROD with RULES

56586 Federal Register / Vol. 91, No. 170 / Thursday, September 3, 2026 / Rules and Regulations is more accurate than a per-airplane estimate. The FAA estimates the total cost per operator for the new actions to be $7,650 (90 work-hours × $85 per work- hour). Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency’s authority. The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, and (2) Will not affect intrastate aviation in Alaska. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES ■ 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] ■ 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2026–18–01 ATR–GIE Avions de Transport Re ´gional: Amendment 39–23456; Docket No. FAA–2026–8792; Project Identifier MCAI–2025–01180–T. (a) Effective Date This airworthiness directive (AD) is effective September 18, 2026. (b) Affected ADs None. (c) Applicability This AD applies to ATR–GIE Avions de Transport Re ´gional Model ATR42–500 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2025–0135, dated June 26, 2025 (EASA AD 2025–0135). (d) Subject Air Transport Association (ATA) of America Code 05, Time Limits/Maintenance Checks; 21, Air Conditioning and Pressurization. (e) Unsafe Condition This AD was prompted by a determination that a new airworthiness limitation is necessary. The FAA is issuing this AD to address the inability to close the ventilation electrical shut-off valves in case of annunciated smoke in a Class E cargo compartment, which could allow suppressed fire to reignite and further propagate. This condition, if not addressed, could result in an uncontrolled fire in the cargo compartment. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Revision of the Existing Maintenance or Inspection Program Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2025–0135. (h) Exceptions to EASA AD 2025–0135 (1) This AD does not adopt the requirements specified in paragraphs (1) and (2) of EASA AD 2025–0135. (2) Paragraph (3) of EASA AD 2025–0135 specifies revising the approved aircraft maintenance program (AMP) within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after the effective date of this AD. (3) The initial compliance time for doing the task specified in paragraph (3) of EASA AD 2025–0135 is on or before the associated thresholds as incorporated by the requirements of paragraph (3) of EASA AD 2025–0135, or within 90 days after the effective date of this AD, whichever occurs later. (4) This AD does not adopt the provisions specified in paragraph (4) of EASA AD 2025– 0135. (5) This AD does not adopt the ‘‘Remarks’’ section of EASA AD 2025–0135. (i) Provisions for Alternative Actions and Intervals After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions ( e.g., inspections) and intervals are allowed unless they are approved as specified in the provisions of the ‘‘Ref. Publications’’ section of EASA AD 2025–0135. (j) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD and email to: AMOC@faa.gov . Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or ATR–GIE Avions de Transport Re ´gional’s EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (k) Additional Information For more information about this AD, contact Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516–228– 7350; email: 9-AVS-AIR-BACO-COS@faa.gov. (l) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2025–0135, dated June 26, 2025. (ii) [Reserved] (3) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu. You may find this material on the EASA website at ad.easa.europa.eu. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. (5) You may view this material at the National Archives and Records VerDate Sep<11>2014 16:06 Sep 02, 2026 Jkt 268001 PO 00000 Frm 00038 Fmt 4700 Sfmt 4700 E:\FR\FM\03SER1.SGM 03SER1 khammond on DSK9W7S144PROD with RULES

56587 Federal Register / Vol. 91, No. 170 / Thursday, September 3, 2026 / Rules and Regulations Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ ibr-locations or email fr.inspection@nara.gov. Issued on August 25, 2026. Christopher R. Parker, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2026–18053 Filed 9–2–26; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 97 [Docket No. 31681; Amdt. No. 4233] Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments AGENCY : Federal Aviation Administration (FAA), DOT. ACTION : Final rule. SUMMARY : 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. DATES : This rule is effective September 3, 2026. The compliance date for each SIAP, associated Takeoff Minimums, and ODP is specified in the amendatory provisions. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of September 3, 2026. ADDRESSES : Availability of matters incorporated by reference in the amendment is as follows: For Examination 1. U.S. Department of Transportation, Docket Ops–M30. 1200 New Jersey Avenue SE, West Bldg., Ground Floor, Washington, DC, 20590–0001. 2. The FAA Air Traffic Organization Service Area in which the affected airport is located; 3. The office of Aeronautical Information Services, 6500 South MacArthur Blvd., Oklahoma City, OK 73169 or, 4. The National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ ibr-locations or email fr.inspection@ nara.gov. Availability All SIAPs and Takeoff Minimums and ODPs are available online free of charge. Visit the National Flight Data Center at nfdc.faa.gov to register. Additionally, individual SIAP and Takeoff Minimums and ODP copies may be obtained from the FAA Air Traffic Organization Service Area in which the affected airport is located. FOR FURTHER INFORMATION CONTACT : Rune Duke, Manager, Standards Section, Flight Procedures and Airspace Group, Aviation Safety, Federal Aviation Administration. Mailing Address: FAA Mike Monroney Aeronautical Center, Flight Procedures and Airspace Group, 6500 South MacArthur Blvd., STB Annex, Bldg. 26, Room 217, Oklahoma City, OK 73099. Telephone (405) 954–1139. SUPPLEMENTARY INFORMATION : This rule amends 14 CFR part 97 by establishing, amending, suspending, or removes SIAPS, Takeoff Minimums and/or ODPS. The complete regulatory description of each SIAP and its associated Takeoff Minimums or ODP for an identified airport is listed on FAA form documents which are incorporated by reference in this amendment under 5 U.S.C. 552(a), 1 CFR part 51, and 14 CFR 97.20. The applicable FAA Forms are 8260–3, 8260–4, 8260–5, 8260–15A, 8260–15B, when required by an entry on 8260–15A, and 8260–15C. The large number of SIAPs, Takeoff Minimums and ODPs, their complex nature, and the need for a special format make publication in the Federal Register expensive and impractical. Further, pilots do not use the regulatory text of the SIAPs, Takeoff Minimums or ODPs, but instead refer to their graphic depiction on charts printed by publishers of aeronautical materials. Thus, the advantages of incorporation by reference are realized and publication of the complete description of each SIAP, Takeoff Minimums and ODP listed on FAA form documents is unnecessary. This amendment provides the affected CFR sections and specifies the types of SIAPS, Takeoff Minimums and ODPs with their applicable effective dates. This amendment also identifies the airport and its location, the procedure, and the amendment number. Availability and Summary of Material Incorporated by Reference The material incorporated by reference is publicly available as listed in the ADDRESSES section. The material incorporated by reference describes SIAPS, Takeoff Minimums and/or ODPs as identified in the amendatory language for part 97 of this final rule. The Rule This amendment to 14 CFR part 97 is effective upon publication of each separate SIAP, Takeoff Minimums and ODP as amended in the transmittal. Some SIAP and Takeoff Minimums and textual ODP amendments may have been issued previously by the FAA in a Flight Data Center (FDC) Notice to Airmen (NOTAM) as an emergency action of immediate flights safety relating directly to published aeronautical charts. The circumstances that created the need for some SIAP and Takeoff Minimums and ODP amendments may require making them effective in less than 30 days. For the remaining SIAPs and Takeoff Minimums and ODPs, an effective date at least 30 days after publication is provided. Further, the SIAPs and Takeoff Minimums and ODPs contained in this amendment are based on the criteria contained in the U.S. Standard for Terminal Instrument Procedures (TERPS). In developing these SIAPs and Takeoff Minimums and ODPs, the TERPS criteria were applied to the conditions existing or anticipated at the affected airports. Because of the close and immediate relationship between these SIAPs, Takeoff Minimums and ODPs, and safety in air commerce, I find that notice and public procedure under 5 U.S.C. 553(b) are impracticable and contrary to the public interest and, where applicable, under 5 U.S.C. 553(d), good cause exists for making some SIAPs effective in less than 30 days. The FAA has determined that this regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. It, therefore—(1) is not a ‘‘significant regulatory action’’ under Executive Order 12866; (2) is not a ‘‘significant rule’’ under DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a VerDate Sep<11>2014 16:06 Sep 02, 2026 Jkt 268001 PO 00000 Frm 00039 Fmt 4700 Sfmt 4700 E:\FR\FM\03SER1.SGM 03SER1 khammond on DSK9W7S144PROD with RULES

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