Data / Federal rules / 2025-19532
Airworthiness Directives; Cameron Balloons Ltd. Fuel Cylinders
The Federal Aviation Administration published this final rule in the Federal Register on October 10, 2025. It took effect on October 27, 2025. Comments closed on November 24, 2025.
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What the agency says
The FAA is superseding Airworthiness Directive (AD) 2025-11- 10, which applied to Cameron Balloons Ltd. (Cameron) fuel cylinders fitted with certain pressure relief valve (PRV) adaptors on hot air balloons. AD 2025-11-10 required repetitively visually checking the PRV adaptor for cracks and removing any fuel cylinder with a cracked PRV adaptor from service. Since the FAA issued AD 2025-11-10, a new replacement part was introduced into service. This AD retains the repetitive check and removal requirements of AD 2025-11-10 and also requires replacement of the PRV adaptor as terminating action for the repetitive checks. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-19532
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- October 10, 2025
- Takes effect
- October 27, 2025
- Comments due
- November 24, 2025
- Dates
- This AD is effective October 27, 2025.
- Docket
- Docket No. FAA-2025-3433; Project Identifier MCAI-2025-01302-Q; Amendment 39-23173; AD 2025-21-01
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in October 2025
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.