# Proposed AD FAA-2026-1324: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-09-12
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 13, 2026, 91 FR 6798
- Comments due: March 30, 2026
- Became: [AD 2026-09-12](https://openairdocs.org/ad/2026-09-12)
- Docket: FAA-2026-1324 (https://www.regulations.gov/docket/FAA-2026-1324, where comments are filed)
- Project: AD-2025-00986-T
- FR document: 2026-02912
- Official PDF: https://openairdocs.org/files/sha256/cd/d6/cdd622f17a8de08990820cdb5bdedbdb385a0af20d879c0853020bfc4e9b9d93 (from https://www.govinfo.gov/content/pkg/FR-2026-02-13/pdf/2026-02912.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/02/13/2026-02912/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-02912-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-1324

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD was prompted by a report of cracks found in the fuselage skin underneath the aft drain mast. This proposed AD would require repetitive inspections of the fuselage skin and structure common to the aft drain mast for any crack or corrosion and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 13, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-02912, comments due Mar 30, 2026 (https://www.federalregister.gov/documents/2026/02/13/2026-02912/airworthiness-directives-the-boeing-company-airplanes)

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