AD 2025-19390
Published 2025-10-02 · 5 models · 223 US-registered tails affected · Federal Register
Airworthiness Directives; The Boeing Company Airplanes Federal Register ↗
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by reports of corrosion on one or more of the eight lower fitting assemblies and adjacent lavatory components on certain lavatories. This AD requires a detailed inspection of the lower fitting assemblies and the centerline partition threshold of the lavatories for corrosion, recording on the modification record placard, and applicable on-condition actions. This AD also requires revising the existing maintenance program to incorporate a detailed inspection of the lavatory vertical side forward fittings for corrosion or damage. 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: 90 FR 47532. View on Federal Register ↗
[Federal Register Volume 90, Number 189 (Thursday, October 2, 2025)] [Rules and Regulations] [Pages 47532-47535] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2025-19390]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-0347; Project Identifier AD-2024-00441-T; Amendment 39-23156; AD 2025-20-03] 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 adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by reports of corrosion on one or more of the eight lower fitting assemblies and adjacent lavatory components on certain lavatories. This AD requires a detailed inspection of the lower fitting assemblies and the centerline partition threshold of the lavatories for corrosion, recording on the modification record placard, and applicable on-condition actions. This AD also requires revising the existing maintenance program to incorporate a detailed inspection of the lavatory vertical side forward fittings for corrosion or damage. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective November 6, 2025. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of November 6, 2025.