# Proposed AD FAA-2025-0469: 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: April 15, 2025, 90 FR 15662
- Comments due: May 30, 2025
- Docket: FAA-2025-0469 (https://www.regulations.gov/docket/FAA-2025-0469, where comments are filed)
- Project: AD-2024-00640-T
- FR document: 2025-06274
- Official PDF: https://openairdocs.org/files/sha256/fe/45/fe450bc9bc1c43b9ff873eada698cd1deb2cc15b17b9f28abf5944b79697df4a (from https://www.govinfo.gov/content/pkg/FR-2025-04-15/pdf/2025-06274.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/04/15/2025-06274/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-06274-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0469

## 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 a report of under-torqued and missing nuts on the horizontal stabilizer trim actuator (HSTA) lower gimbal assembly. This proposed AD would require a review of maintenance records to determine if an overhauled HSTA was inspected and corrective actions were accomplished using certain service information, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 15, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-06274, comments due May 30, 2025 (https://www.federalregister.gov/documents/2025/04/15/2025-06274/airworthiness-directives-the-boeing-company-airplanes)

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