United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2026_register executive 2026-05-21 article Rules and Regulations D09002ee1e1e8bf1f D09002ee1e1e8bf91 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB139, AW139, and AW189 helicopters. This AD was prompted by a report of cracks on the left-hand (LH) and right-hand (RH) tube assemblies installed on the brake pedal assemblies. This AD requires repetitively inspecting the LH and RH tube assemblies for Model AB139 and AW139 helicopters, and the LH and RH pedal shaft assemblies for Model AW189 helicopters, and depending on the results of the inspection, corrective actions. This AD also prohibits installing certain parts unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products. 91 FR 29890 https://www.govinfo.gov/app/details/FR-2026-05-21/2026-10170 2026-10170 fr21my26-3 RIN 2120-AA64 4910-13-P Docket No. FAA-2026-0025 Project Identifier MCAI-2025-01294-R Amendment 39-23343 AD 2026-10-03 https://www.govinfo.gov/app/details/FR-2026-05-21/2026-10170 https://www.govinfo.gov/content/pkg/FR-2026-05-21/html/2026-10170.htm https://www.govinfo.gov/content/pkg/FR-2026-05-21/pdf/2026-10170.pdf Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety 3 p. 29890 29892 91 FR 29890 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Leonardo S.p.a. Helicopters; Federal Register Vol. 91, Issue RULE 2026-10170 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2026-06-25 Docket No. FAA-2026-0025 Project Identifier MCAI-2025-01294-R Amendment 39-23343 AD 2026-10-03 4910-13-P 2026-10170 Final rule.

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB139, AW139, and AW189 helicopters. This AD was prompted by a report of cracks on the left-hand (LH) and right-hand (RH) tube assemblies installed on the brake pedal assemblies. This AD requires repetitively inspecting the LH and RH tube assemblies for Model AB139 and AW139 helicopters, and the LH and RH pedal shaft assemblies for Model AW189 helicopters, and depending on the results of the inspection, corrective actions. This AD also prohibits installing certain parts unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

This AD is effective June 25, 2026. Steven Warwick, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (817) 222-5225; email: steven.r.warwick@faa.gov. Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety Airworthiness Directives Leonardo S.p.a. Helicopters, ADs@easa.europa.eu AMOC@faa.gov fr.inspection@nara.gov steven.r.warwick@faa.gov regulations.gov www.archives.gov/federal-register/cfr/ibr-locations Vol. 91, no. 98 Office of the Federal Register, National Archives and Records Administration 2026-05-21 continuing daily deposited born digital 320 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2026-05-21 P0b002ee1e1e8bb9d 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr21my26 https://www.govinfo.gov/app/details/FR-2026-05-21 https://www.govinfo.gov/content/pkg/FR-2026-05-21/pdf/FR-2026-05-21.pdf https://www.govinfo.gov/content/pkg/FR-2026-05-21/xml/FR-2026-05-21.xml fdlp 29879 30190 DGPO 2026-05-21 2026-05-21 FR-2026-05-21 machine generated eng FR FR-2026-05-21 91 98