AD 2025-07-02 — Aircraft-logs.com

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2025-07-02 BRP-Rotax GmbH & Co KG (formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH): Amendment 39-23003; Docket No. FAA-2025-0346; Project Identifier MCAI-2025-00052-E. (a) Effective Date This airworthiness directive (AD) is effective April 21, 2025. (b) Affected ADs None. (c) Applicability This AD applies to BRP-Rotax GmbH & Co KG (formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) (Rotax) Model 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, and 915 iSc3 C24 engines that are equipped with an affected part as defined in paragraph (h)(1) of this AD. (d) Subject Joint Aircraft System Component (JASC) Code 8120, Exhaust Turbocharger; 8550, Reciprocating Engine Oil System. (e) Unsafe Condition This AD was prompted by a report of deviations during the manufacturing process of certain sprag clutch housing and oil spray nozzles, including incorrect application of a certain thread-locker. The FAA is issuing this AD to prevent blockage of the oil nozzle, inadequate cooling, and damage to the generators. The unsafe condition, if not addressed, could result in engine in-flight shutdown and forced landing, damage to the airplane, and injury to the occupants. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Before further flight after the effective date of this AD and thereafter before each flight, perform a first start of the battery prior to starting the engine under normal procedure as an operational check to ensure the availability of the battery backup function. (i) In order to check the sufficient state of battery capacity, do not use an additional external power source for this operational check. (ii) The owner/operator (pilot) holding at least a private pilot certificate may perform the action required by paragraph (g)(1) of this AD for your engine and must enter compliance with the applicable paragraphs of this AD into the engine maintenance records in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. (2) If, during the operational check required by paragraph (g)(1) of this AD, the battery capacity is determined to be insufficient, before further flight, remove the engine from service. (3) Within 25 flight hours or 12 months, whichever occurs first after the effective date of this AD, perform a one-time inspection of the oil spray nozzle in accordance with the Accomplishment/Instructions, paragraph 3.4.1) of Rotax Alert Service Bulletin ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, Revision 1, dated December 20, 2024 (published as a single document) (Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1). (4) If, during the inspection required by paragraph (g)(3) of this AD, any oil spray nozzle fails to meet the serviceability criteria specified in the Accomplishment/Instructions, paragraph 3.4.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, before further flight, replace the oil spray nozzle with a part eligible for installation, in accordance with the Accomplishment/Instructions, paragraph 3.5.2) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1. (5) Within 25 flight hours or 12 months, whichever occurs first after the effective date of this AD, perform a one-time inspection of the generator stator assembly in accordance with the Accomplishment/Instructions, paragraph 3.5.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1. (6) If, during the inspection required by paragraph (g)(6) of this AD, any generator stator assembly fails to meet the serviceability criteria specified in the Accomplishment/Instructions, paragraph 3.5.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, before further flight, replace the generator stator assembly with a part eligible for installation. Note 1 to paragraph (g)(6): Guidance for removal and installation of the generator stator assembly for Rotax Model 912 iSc2 Sport and 912 iSc3 Sport engines may be found in Rotax Heavy Maintenance Manual MMH-912i, Part No. 898752, Chapter 24-20-00. Guidance for removal and installation of the generator stator assembly for Rotax Model 915 iSc2 C24 and 915 iSc3 C24 engines may be found in the Rotax Heavy Maintenance Manual MMH-915 I A/C24, Part No. 898861, Chapter 24-20-00. (h) Definitions (1) For the purpose of this AD, an "affected part" is a generator stator assembly, or an oil spray nozzle assembly having part number (P/N) 456540 manufactured before October 31, 2024, that is: (i) Installed on an engine with a serial number specified in the Appendix to Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1; or (ii) Known to have been delivered as a spare part, as specified in Planning Information, Paragraph 1.1, Criterion B), of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1; or (iii) Unable to be excluded from the criteria listed in paragraph (h)(1)(i) or (ii) of this AD. (iv) A generator stator assembly or an oil spray nozzle assembly is not considered an "affected part" if it has been in operation for 200 flight hours or more without a required maintenance action due to generator stator assembly cooling issues. (2) For the purpose of this AD, a "part eligible for installation" is any of the following: (i) An oil spray nozzle having P/N 456540, manufactured after October 31, 2024. (ii) For Rotax Model 912 iSc2 Sport and 912 iSc3 Sport engines, a generator stator assembly having P/N 891095. (iii) For Rotax Model 915 iSc2 C24 and 915 iSc3 C24 engines, a generator stator assembly having P/N 889562. (i) Terminating Action The actions specified in paragraphs (g)(3) through (6) of this AD constitute terminating action for all the requirements of paragraph (g)(1) of this AD. (j) Credit for Previous Actions You may take credit for the actions required by paragraphs (g)(3) through (6) of this AD if you performed those actions before the effective date of this AD using Rotax Service Bulletin SB-912 i-016/SB-915 i-016/SB-916 i-006, dated December 16, 2024 (published as a single document). (k) 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 local Flight Standards District 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 (l)(1) of this AD and email to: AMOC@faa.gov. (l) Additional Information (1) For more information about this AD, contact Kenneth Steeves, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (781) 238-7765; email: kenneth.steeves@faa.gov. (2)) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (m)(3) of this AD. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) 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 the AD specifies otherwise. (i) BRP-Rotax GmbH & Co KG (Rotax) Alert Service Bulletin ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, Revision 1, dated December 20, 2024 (published as a single document). (ii) [Reserved] (3) For Rotax material identified in this AD, contact BRP-Rotax GmbH & Co KG, Rotaxstrasse 1, A-4623 Gunskirchen, Austria; phone: +43 7246 601 0; website: flyrotax.com. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call (817) 222-5110. (5) You may view this material at 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. Issued on April 1, 2025. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2025-05852 Filed 4-1-25; 4:15 pm]BILLING CODE 4910-13-P

Comments Invited The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under ADDRESSES . Include "Docket No. FAA-2025-0346; Project Identifier MCAI-2025-00052-E" 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 AD, 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 AD. Submissions containing CBI should be sent to Kenneth Steeves, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. Background The European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Emergency AD 2025-0019-E, dated January 16, 2025 (referred to after this as the MCAI), to address an unsafe condition on Rotax 912 iSc Sport, 915 iSc A, 915 iSc C24, 916 iSc A, 916 iSc B, and 916 iSc C24 series engines, all models, all serial numbers. The MCAI states that the manufacturer reported an occurrence from the production line of an excessive amount of thread-locker applied at the sprag clutch housing and oil spray nozzle of several engines. Further investigation by the manufacturer revealed that this abnormality was caused by a deviation in the manufacturing process. Improper application of thread-locker can cause blockage of the oil nozzle, potentially leading to inadequate cooling and damage to the generators. This condition, if not corrected, could lead to engine in-flight shutdown and forced landing, damage to the airplane, and injury to the occupants. The FAA is also permitting the owner/operator (pilot) holding at least a private pilot certificate to perform an operational check to ensure the availability of the battery backup function in accordance with paragraph (g)(1) of this AD. The FAA is also requiring that compliance with the applicable paragraphs of this AD be entered into the engine maintenance records in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). This action could be performed equally well by a pilot or a mechanic. This is an exception to the FAA's standard maintenance regulations. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA-2025-0346. Material Incorporated by Reference Under 1 CFR Part 51 The FAA reviewed Rotax Alert Service Bulletin ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, Revision 1, dated December 20, 2024 (published as a single document). This material specifies procedures for performing an operational check of the battery backup function, inspecting the oil spray nozzle and generator stator assembly, and replacing the oil spray nozzle. 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 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, it 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 repetitive operational checks of the battery backup function with removal of the engine from service if insufficient battery power is found, one-time inspections of the oil spray nozzle and generator stator assembly, and, depending on the results of the inspections, replacement with parts eligible for installation. Differences Between This AD and the MCAI Where the MCAI applies to Rotax Model 915 iSc A, 916 iSc A, 916 iSc B and 916 iSc C24 series engines, all models, all serial numbers, this AD does not, as these engine models do not have an FAA type certificate. 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. An unsafe condition exists that requires the immediate adoption of this AD without providing an opportunity for public comments prior to adoption. The FAA has found that the risk to the flying public justifies forgoing notice and comment prior to adoption of this rule because deviations during the manufacturing process of certain sprag clutch housing and oil spray nozzles could cause blockage of the oil nozzle and damage to the generators which, if not corrected, could lead to engine in-flight shutdown and forced landing, damage to the airplane, and injury to the occupants. Since this condition can result rapidly and without warning, the FAA has determined that these engines will need to be inspected within 25 flight hours or within 12 months, whichever occurs first after the effective date of this AD. These compliance times are shorter than the time necessary for the public to comment and for publication of the final rule. Accordingly, notice and opportunity for prior public comment are impracticable and contrary to the public interest pursuant to 5 U.S.C. 553(b). In addition, 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, for the same reasons the FAA found good cause to forgo notice and comment. 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 prior notice and comment, RFA analysis is not required. Costs of Compliance The FAA estimates that this AD affects 25 engines installed on airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: Estimated Costs Action Labor cost Parts cost Cost per product Cost on U.S. operators Inspect oil spray nozzle and generator stator assembly 8.50 work-hours × $85 per hour = $722.50 $0 $722.50 $18,062.50 The FAA estimates the following costs to do any necessary replacements that would be required based on the results of the inspection. The agency has no way of determining the number of engines that might need these replacements: On-Condition Costs Action Labor cost Parts cost Cost per product Replace oil spray nozzle 8 work-hours × $85 per hour = $680 $500 $1,180 Replace generator stator assembly 8 work-hours × $85 per hour = $680 2,000 2,680 The FAA has included all known costs in its cost estimate. According to the manufacturer, however, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators. 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: 2025-07-02 BRP-Rotax GmbH & Co KG (formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH): Amendment 39-23003; Docket No. FAA-2025-0346; Project Identifier MCAI-2025-00052-E. (a) Effective Date This airworthiness directive (AD) is effective April 21, 2025. (b) Affected ADs None. (c) Applicability This AD applies to BRP-Rotax GmbH & Co KG (formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) (Rotax) Model 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, and 915 iSc3 C24 engines that are equipped with an affected part as defined in paragraph (h)(1) of this AD. (d) Subject Joint Aircraft System Component (JASC) Code 8120, Exhaust Turbocharger; 8550, Reciprocating Engine Oil System. (e) Unsafe Condition This AD was prompted by a report of deviations during the manufacturing process of certain sprag clutch housing and oil spray nozzles, including incorrect application of a certain thread-locker. The FAA is issuing this AD to prevent blockage of the oil nozzle, inadequate cooling, and damage to the generators. The unsafe condition, if not addressed, could result in engine in-flight shutdown and forced landing, damage to the airplane, and injury to the occupants. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Before further flight after the effective date of this AD and thereafter before each flight, perform a first start of the battery prior to starting the engine under normal procedure as an operational check to ensure the availability of the battery backup function. (i) In order to check the sufficient state of battery capacity, do not use an additional external power source for this operational check. (ii) The owner/operator (pilot) holding at least a private pilot certificate may perform the action required by paragraph (g)(1) of this AD for your engine and must enter compliance with the applicable paragraphs of this AD into the engine maintenance records in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. (2) If, during the operational check required by paragraph (g)(1) of this AD, the battery capacity is determined to be insufficient, before further flight, remove the engine from service. (3) Within 25 flight hours or 12 months, whichever occurs first after the effective date of this AD, perform a one-time inspection of the oil spray nozzle in accordance with the Accomplishment/Instructions, paragraph 3.4.1) of Rotax Alert Service Bulletin ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, Revision 1, dated December 20, 2024 (published as a single document) (Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1). (4) If, during the inspection required by paragraph (g)(3) of this AD, any oil spray nozzle fails to meet the serviceability criteria specified in the Accomplishment/Instructions, paragraph 3.4.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, before further flight, replace the oil spray nozzle with a part eligible for installation, in accordance with the Accomplishment/Instructions, paragraph 3.5.2) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1. (5) Within 25 flight hours or 12 months, whichever occurs first after the effective date of this AD, perform a one-time inspection of the generator stator assembly in accordance with the Accomplishment/Instructions, paragraph 3.5.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1. (6) If, during the inspection required by paragraph (g)(6) of this AD, any generator stator assembly fails to meet the serviceability criteria specified in the Accomplishment/Instructions, paragraph 3.5.1) of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, before further flight, replace the generator stator assembly with a part eligible for installation. Note 1 to paragraph (g)(6): Guidance for removal and installation of the generator stator assembly for Rotax Model 912 iSc2 Sport and 912 iSc3 Sport engines may be found in Rotax Heavy Maintenance Manual MMH-912i, Part No. 898752, Chapter 24-20-00. Guidance for removal and installation of the generator stator assembly for Rotax Model 915 iSc2 C24 and 915 iSc3 C24 engines may be found in the Rotax Heavy Maintenance Manual MMH-915 I A/C24, Part No. 898861, Chapter 24-20-00. (h) Definitions (1) For the purpose of this AD, an "affected part" is a generator stator assembly, or an oil spray nozzle assembly having part number (P/N) 456540 manufactured before October 31, 2024, that is: (i) Installed on an engine with a serial number specified in the Appendix to Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1; or (ii) Known to have been delivered as a spare part, as specified in Planning Information, Paragraph 1.1, Criterion B), of Rotax ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1; or (iii) Unable to be excluded from the criteria listed in paragraph (h)(1)(i) or (ii) of this AD. (iv) A generator stator assembly or an oil spray nozzle assembly is not considered an "affected part" if it has been in operation for 200 flight hours or more without a required maintenance action due to generator stator assembly cooling issues. (2) For the purpose of this AD, a "part eligible for installation" is any of the following: (i) An oil spray nozzle having P/N 456540, manufactured after October 31, 2024. (ii) For Rotax Model 912 iSc2 Sport and 912 iSc3 Sport engines, a generator stator assembly having P/N 891095. (iii) For Rotax Model 915 iSc2 C24 and 915 iSc3 C24 engines, a generator stator assembly having P/N 889562. (i) Terminating Action The actions specified in paragraphs (g)(3) through (6) of this AD constitute terminating action for all the requirements of paragraph (g)(1) of this AD. (j) Credit for Previous Actions You may take credit for the actions required by paragraphs (g)(3) through (6) of this AD if you performed those actions before the effective date of this AD using Rotax Service Bulletin SB-912 i-016/SB-915 i-016/SB-916 i-006, dated December 16, 2024 (published as a single document). (k) 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 local Flight Standards District 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 (l)(1) of this AD and email to: AMOC@faa.gov. (l) Additional Information (1) For more information about this AD, contact Kenneth Steeves, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (781) 238-7765; email: kenneth.steeves@faa.gov. (2)) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (m)(3) of this AD. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) 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 the AD specifies otherwise. (i) BRP-Rotax GmbH & Co KG (Rotax) Alert Service Bulletin ASB-912 i-016 R1/ASB-915 i-016 R1/ASB-916 i-006 R1, Revision 1, dated December 20, 2024 (published as a single document). (ii) [Reserved] (3) For Rotax material identified in this AD, contact BRP-Rotax GmbH & Co KG, Rotaxstrasse 1, A-4623 Gunskirchen, Austria; phone: +43 7246 601 0; website: flyrotax.com. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call (817) 222-5110. (5) You may view this material at 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. Issued on April 1, 2025. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service.

AD Number	2025-07-02	Status	Superseded
Effective Date	April 21, 2025	Issue Date	April 01, 2025
Docket Number	FAA-2025-0346	Amendment	39-23003
Product Type	["Engine"]	Product Subtype	["Small Airplane"]
CFR Part	--- - Part 39	CFR Section	--- - _EMPTY_
Citation	Federal Register, Volume 90 Number 64 (Friday, April 4, 2025)

Manufacturer(s)	BRP-Rotax GmbH & Co KG
Model(s)	912 iSc2 Sport 912 iSc3 Sport 915 iSc2 C24 915 iSc3 C24

AD 2025-07-02 SUPERSEDED