# Proposed AD FAA-2023-0157: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-12-08
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 15, 2023, 88 FR 9773
- Comments due: March 31, 2023
- Became: [AD 2023-12-08](https://openairdocs.org/ad/2023-12-08)
- Docket: FAA-2023-0157 (https://www.regulations.gov/docket/FAA-2023-0157, where comments are filed)
- Project: AD-2022-01309-T
- FR document: 2023-03138
- Official PDF: https://openairdocs.org/files/sha256/c9/a3/c9a329040dd6a557010561a904966869e4735f6012fa46ac99f47c17aa1f3493 (from https://www.govinfo.gov/content/pkg/FR-2023-02-15/pdf/2023-03138.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/02/15/2023-03138/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-03138-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-0157

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 747-8 series airplanes. This proposed AD was prompted by a report of stress corrosion cracking in certain stringers and end stringer splice assemblies. This proposed AD would require repetitive inspections of the stringers and end stringer splice assemblies for any crack, shim, or gap, and applicable on- condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 15, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-03138, comments due Mar 31, 2023 (https://www.federalregister.gov/documents/2023/02/15/2023-03138/airworthiness-directives-the-boeing-company-airplanes)

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