# Proposed AD FAA-2025-2548: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 29, 2025, 90 FR 46535
- Comments due: November 13, 2025
- Docket: FAA-2025-2548 (https://www.regulations.gov/docket/FAA-2025-2548, where comments are filed)
- Project: AD-2024-00478-T
- FR document: 2025-18833
- Official PDF: https://openairdocs.org/files/sha256/e0/eb/e0eb2b81d49a963d98ec02fce9d61e301b286f1424f4b3dd7ef6b82d911bf801 (from https://www.govinfo.gov/content/pkg/FR-2025-09-29/pdf/2025-18833.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/09/29/2025-18833/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-18833-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-2548

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD was prompted by reports of shim installations at certain stub beam to longitudinal floor beam locations that were not installed per specifications, and an evaluation by the design approval holder indicating inadequate baseline inspections for cracking of the stub beam. This proposed AD would require repetitive inspections for any crack of the stub beam straps at certain stations and repairing any crack found. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 29, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-18833, comments due Nov 13, 2025 (https://www.federalregister.gov/documents/2025/09/29/2025-18833/airworthiness-directives-the-boeing-company-airplanes)

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