# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2025-10-02 · Effective 2025-11-06 · 90 FR 47532
## Document
- **Document number:** 2025-19390
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 90 FR 47532
- **Publication date:** 2025-10-02
- **Effective date:** 2025-11-06
- **FAA docket:** Docket No. FAA-2025-0347
## 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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/10/02/2025-19390/airworthiness-directives-the-boeing-company-airplanes)
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