Data / Federal rules / 2026-16389
Airworthiness Directives; The Boeing Company Airplanes
The Federal Aviation Administration published this proposed rule in the Federal Register on August 12, 2026. Comments closed on September 28, 2026.
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What the agency says
The FAA proposes to supersede Airworthiness Directive (AD) 2022-15-01, which applies to certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2022-15-01 requires inspecting certain vertical fin tension bolt holes; reviewing the bolt sealant application installation procedure in the existing maintenance or inspection program, as applicable; checking maintenance records to determine the replacement status of vertical fin tension bolts; and doing applicable on-condition actions. Since the FAA issued AD 2022-15-01, the FAA has determined that optional sealant types allowed by that AD may not provide sufficient time to complete all bolt installations. The FAA has also received additional reports of corrosion that, in some cases, was more severe than expected. As a result, the FAA has determined that the compliance times for certain actions must be reduced. This proposed AD would, for certain airplanes, continue to require certain actions required by AD 2022-15-01 with reduced compliance times. For certain airplanes, this proposed AD would also require reviewing maintenance records to determine whether a correct sealant application method was used and performing applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-16389
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- August 12, 2026
- Comments due
- September 28, 2026
- Dates
- The FAA must receive comments on this proposed AD by September 28, 2026.
- Docket
- Docket No. FAA-2026-7234; Project Identifier AD-2026-00344-T
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in August 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.