# Proposed AD FAA-2024-2137: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-01-08
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 9, 2024, 89 FR 73014
- Comments due: October 24, 2024
- Became: [AD 2025-01-08](https://openairdocs.org/ad/2025-01-08)
- Docket: FAA-2024-2137 (https://www.regulations.gov/docket/FAA-2024-2137, where comments are filed)
- Project: AD-2023-00297-T
- FR document: 2024-20159
- Official PDF: https://openairdocs.org/files/sha256/fc/cb/fccb0b690ed8a3f32dd3046d9d3d730e9bcbf2a321f26fdcfb504544db9ab926 (from https://www.govinfo.gov/content/pkg/FR-2024-09-09/pdf/2024-20159.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/09/09/2024-20159/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-20159-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-2137

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2019-22-02, which applies to all The Boeing Company Model 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8 series airplanes. AD 2019-22-02 was prompted by reports of uncommanded fore and aft movement of the Captain's and First Officer's seats. AD 2019-22-02 requires identifying the part number, and the serial number if applicable, of the Captain's and First Officer's seats, and applicable on-condition actions for affected seats. AD 2019- 22-02 also requires a one-time detailed inspection and repetitive checks of the horizontal movement system (HMS) of the Captain's and First Officer's seats, and applicable on-condition actions. AD 2019-22- 02 also provides an optional terminating action for the repetitive actions for certain seats. Since the FAA issued AD 2019-22-02, the FAA has determined that additional seats are affected by the unsafe condition. This proposed AD would retain the actions required by AD 2019-22-02 and adds an inspection of previously omitted part numbers. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 9, 2024: Notice of proposed rulemaking (NPRM). (first notice), FR document 2024-20159, comments due Oct 24, 2024 (https://www.federalregister.gov/documents/2024/09/09/2024-20159/airworthiness-directives-the-boeing-company-airplanes)

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