# Proposed AD FAA-2024-1897: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-23-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 29, 2024, 89 FR 60836
- Comments due: September 12, 2024
- Became: [AD 2024-23-03](https://openairdocs.org/ad/2024-23-03)
- Docket: FAA-2024-1897 (https://www.regulations.gov/docket/FAA-2024-1897, where comments are filed)
- Project: AD-2023-00774-T
- FR document: 2024-16474
- Official PDF: https://openairdocs.org/files/sha256/87/69/87698a01cdef9c663acfb6b9d1a7704fbfa02ee859a13ee3840c4314d4e20289 (from https://www.govinfo.gov/content/pkg/FR-2024-07-29/pdf/2024-16474.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/07/29/2024-16474/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-16474-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-1897

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-300 and -400 series airplanes. This proposed AD was prompted by a report that flight control rigging tolerances could result in spoiler deflection not reaching the minimal level required to engage the cruise thrust split monitor (MONFD) used by the autothrottle (A/T) system. This proposed AD would require changing certain wire bundles, installing a new housing assembly, removing the mechanical aileron force limiter (MAFL), doing an inspection or records check to determine if certain flight control computers (FCCs) are installed, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 29, 2024: Notice of proposed rulemaking (NPRM). (first notice), FR document 2024-16474, comments due Sep 12, 2024 (https://www.federalregister.gov/documents/2024/07/29/2024-16474/airworthiness-directives-the-boeing-company-airplanes)

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