Data / Federal rules / 2026-14090
Airworthiness Directives; The Boeing Company Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on July 13, 2026. It took effect on July 13, 2026. Comments closed on August 27, 2026.
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What the agency says
The FAA is superseding Airworthiness Directive (AD) 2026-13- 05, which applied to all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. AD 2026-13-05 required revising the existing airplane flight manual (AFM) to provide the flightcrew with operating procedures (non-normal checklists) if a certain circuit breaker in the standby power control unit (SPCU) trips or certain environmental control system (ECS) circuit breakers downstream of the SPCU trip. Since the FAA issued AD 2026-13-05, a formatting error that omitted part of a certain appendix from AD 2026-13-05 was discovered. This AD retains the certain requirements of AD 2026-13-05 and requires revising the existing AFM to include the corrected appendix. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-14090
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- July 13, 2026
- Takes effect
- July 13, 2026
- Comments due
- August 27, 2026
- Dates
- This AD is effective July 13, 2026.
- Docket
- Docket No. FAA-2026-7218; Project Identifier AD-2026-00702-T; Amendment 39-23412; AD 2026-14-11
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 20
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in July 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.