# Proposed AD FAA-2025-3422: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-10-14
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 30, 2025, 90 FR 46771
- Comments due: November 14, 2025
- Became: [AD 2026-10-14](https://openairdocs.org/ad/2026-10-14)
- Docket: FAA-2025-3422 (https://www.regulations.gov/docket/FAA-2025-3422, where comments are filed)
- Project: AD-2025-00763-T
- FR document: 2025-19055
- Official PDF: https://openairdocs.org/files/sha256/99/be/99be31d532555cc607d3fd624b9f8873ee1f4802a6747d34f2d86308b33411c3 (from https://www.govinfo.gov/content/pkg/FR-2025-09-30/pdf/2025-19055.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/09/30/2025-19055/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-19055-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-3422

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 747-100, -100B, -100B SUD, -200B, - 200C, -200F, -300, -400, -400D, -400F, 747SP, and 747SR series airplanes. This proposed AD was prompted by reports of corrosion damage found on a certain satellite communications (SATCOM) high gain antenna adapter plate. This proposed AD would require repetitive detailed inspections (DET) of the SATCOM high gain antenna adapter plate for corrosion and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 30, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-19055, comments due Nov 14, 2025 (https://www.federalregister.gov/documents/2025/09/30/2025-19055/airworthiness-directives-the-boeing-company-airplanes)

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