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AD 2026-02096

Published 2026-02-02 · 8 models · 268 US-registered tails affected · Federal Register

Airworthiness Directives; The Boeing Company Airplanes Federal Register ↗

Abstract

The FAA is superseding Airworthiness Directive (AD) 2024-01- 01, which applied to certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2024-01-01 required repetitive general visual inspections (GVIs) of the area under all lavatory washbasins for evidence of intermittent and active leaks at the faucet control module (FCM) and applicable on-condition actions. This AD was prompted by development of an FCM with an improved design that is not susceptible to leaking. This AD continues to require the actions of AD 2024-01-01 and requires replacement of the FCM as terminating action for the repetitive GVIs, a leak test, installation of moisture management devices, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

Applicability · by US fleet size

Federal Register text

Verbatim; the Federal Register publication is the legally binding document. Cite: 91 FR 4438. View on Federal Register ↗

[Federal Register Volume 91, Number 21 (Monday, February 2, 2026)] [Rules and Regulations] [Pages 4438-4442] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2026-02096]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2025-1103; Project Identifier AD-2024-00141-T; Amendment 39-23246; AD 2026-02-10] RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2024-01- 01, which applied to certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2024-01-01 required repetitive general visual inspections (GVIs) of the area under all lavatory washbasins for evidence of intermittent and active leaks at the faucet control module (FCM) and applicable on-condition actions. This AD was prompted by development of an FCM with an improved design that is not susceptible to leaking. This AD continues to require the actions of AD 2024-01-01 and requires replacement of the FCM as terminating action for the repetitive GVIs, a leak test, installation of moisture management devices, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective March 9, 2026. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of March 9, 2026. The Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD as of March 7, 2024 (89 FR 6422, February 1, 2024).